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This is the tip of the day (a.k.a. TOTD) project, providing useful daily advice on how to use or develop Wikipedia more effectively. This project is responsible for maintaining the Wikipedia:Tip of the day#Tip templates, and the collection of daily tips that are displayed by those templates.
History
The Tip of the Day was started on February 18, 2004 as an original feature of the newly created Community Portal. There were about 50 tips, displayed one per day, on a rotating basis.
In 2006, the project was revamped and expanded to a tip page for each day of the year. Later that year, a "yearless tip" was created, with no year included in the page titles, so that the same pages could be displayed automatically year after year. The tip collection grew to about 300 tips - still about 66 tips short of a full supply.
The tip of the day was added to the main help page, Help:Contents, on March 13, 2006. That page was renamed on September 20, 2012, to Help:Menu, to make way for a new main help page. In 2015, the tip of the day project underwent an overhaul, during which the display template functionality was enhanced and simplified, many new tips were added, replacing obsolete and duplicate tips. The tip of the day was added to the current help page on November 22, 2015.
Over the years, Tip of the Day project regulars, and other helpful editors have maintained the set of auto-displaying tips, updating them, and creating new tips to replace redundant or obsolete tips.
Check the prominent locations
The three main places that the Tip of the Day is displayed, are the Community portal page (since 02/18/2004), the Help:Contents page (the top-level help page), and the Help:Menu (this was Help:Contents until 09/20/2012).
Sometimes the tip gets removed from those pages, either through vandalism or by an overly bold edit. If you notice it missing from any of them, please put it back. Thank you.
Displaying tips on your user pages
To add one of the many versions of the tip of the day template to your user page, go here.
Participating...
To participate in developing, proofreading, and scheduling new tips, see the instructions on the talk page.
This is the tip of the day scheduling queue. The TOTD system operates on the Rolodex approach, in which each daily tip page is automatically displayed again year after year.
Each tip needs to be proofread before its upcoming presentation date arrives, to ensure that it has not grown out of date or become obsolete! Please help. For questions, comments, or to submit a new tip please go to our Project's Talk page.
Now, without further ado, here are Wikipedia's daily tips, by presentation date:
This is the tip scheduling queue arranged alphabetically. The TOTD system operates on the "yearless year" approach, in which each tip's page is automatically displayed year after year. There is also a chronological list of these tips.
Each tip needs to be proofread before its upcoming presentation date arrives, to ensure that it hasn't grown out of date or obsolete! Please help. For questions, comments, or to submit a new tip please go to this Project's Talk page.
This is the list of tip display templates (also posted at Wikipedia:Tip of the day/July 21). Here is a gallery of display templates for you to view the display templates listed below:
{{totd}}–the main userspace version of the tip of the day template, with border, centered in the middle of the page. Complete with inspirational light bulb.
{{totd b}}–a more compact version of the above template. Useful for columns.
{{totd3}}–a purple box version, useful for displaying the tip in columns.
{{totd-random}}–this is the tip of the moment template, which automatically displays a different tip every time you enter a page it is on. If it doesn't update, try clearing your browser cache.
{{totd-tomorrow}}–this shows tomorrow's tip, and is used by Wikipedia tipsters to make sure that the tips are up-to-date and corrected before they go live.
{{tip of the day}}–the borderless version, with lightbulb.
{{totd2}}–the borderless version used on Wikipedia's Help page (which already has its own borders). (No lightbulb).
{{totd CP}}–like the help page version, but with a box & light bulb. Spans the whole field (screen or column) that it is in.
{{totd-static}}– like the totd version but the date is static. You have to manually change the date. Good for testing purposes.
Random tip
The following template {{Totd-random}} is for Wikipedians who can't wait until tomorrow for their next tip! It presents a random tip each time you reload the page it is presented on:
So-called speedy deletion involves the scrutiny of only a few people before an article is deleted. The allowable criteria for speedy-deletion are deliberately very narrow. The list of candidates for speedy deletion can be viewed at Category:Candidates for speedy deletion.
Another quick method is the use of proposed deletion: simply add {{subst:prod|reason goes here}} to the top of the article. This is meant for articles where the deletion is believed to be uncontroversial, yet does not meet the criteria for speedy deletion. A proposed deletion can be contested by any user by removing the {{prod}} tag within seven days, and if anyone still wants the article deleted the full Articles for deletion process is required.
Articles which do not meet the narrow criteria for speedy deletion and whose deletion is (or might be) contested are discussed by the community through the Articles for deletion (AfD) process.
The article Wikipedia:Plain and simple is a summary that explains the basics of what you need to know to start editing quickly and avoid major stumbling blocks.
Don't worry if you don't understand everything at first. As time goes on, you'll learn how to be a great contributor to Wikipedia!
If you do get stuck, there are volunteers available to answer your questions, see asking for help for more information.
To add this auto-updating template to your user page, use {{totd-tomorrow}}
Day-after-next's tip
This template {{Totd-day-after-next}} is for monitoring the tip queue two days in advance to make sure the tip is proofread before it goes live anywhere in the world:
Please proofread the daily tip before it goes "live"...
It's displayed below two days early, so it can be error-checked and made ready-to-display for all time zones.
Some tips are obsolete. So we need new tips too. Please share your best tips and tip ideas at the Tip of the day department.
Discovering that pages need basic copyediting may surprise new visitors to Wikipedia. This is because the encyclopedia is a dynamic work in progress, published while it is being developed and updated in real time by people all over the world. Millions of the articles need simple improvements. You don't have to be an expert to edit Wikipedia. Just click the edit tab at the top of the page and start typing away!
Copyediting involves the "five Cs": making the article clear, correct, concise, comprehensible, and consistent. So, if you see something you can fix, click on the "edit" tab at the top of the page, and start typing in the edit window to fix it. Be bold. And, if there are any facts you know about the subject that are missing, then please, add them in!
To add this auto-updating template to your user page, use{{totd-day-after-next}}
Note: with {{totd-tomorrow}}, it isn't tomorrow for all time zones, and so it may have already gone live for part of the world before you've edited it.
Collaborations 
For the complete library of tips arranged by subject, see Wikipedia:Tips.
