This is an extension of a comment I made that I can't find and also a request for examples. It seems plausible that, when giving advice, many people optimize for deepness or punchiness of the advice rather than for actual practical value. There may be good reasons to do this - e.g. advice that sounds deep or punchy might be more likely to be listened to - but as a corollary, there could be valuable advice that people generally don't give because it doesn't sound deep or punchy. Let's call this boring advice.
An example that's been discussed on LW several times is "make checklists." Checklists are great. We should totally make checklists. But "make checklists" is not a deep or punchy thing to say. Other examples include "google things" and "exercise."
I would like people to use this thread to post other examples of boring advice. If you can, provide evidence and/or a plausible argument that your boring advice actually is useful, but I would prefer that you err on the side of boring but not necessarily useful in the name of more thoroughly searching a plausibly under-searched part of advicespace.
Upvotes on advice posted in this thread should be based on your estimate of the usefulness of the advice; in particular, please do not vote up advice just because it sounds deep or punchy.
Welcome to the joys of race conditions. Even when you click the edit button the instant after you comment, for all the time spent writing the additional paragraphs anyone who loads the recent comments page sees the original. Then, for all the time they spent replying to your comment---and sometimes even replying to other recent comments on the same page load---they are not notified of any changes to your comment. So if either the edit takes a long time or the reply takes time, synchronization errors will frequently occur.
I sometimes realize that a comment of mine needs elaboration, or perhaps needs to be tempered somewhat with substantial argument rather than mere dismissal. In those cases where I expect the difference between the edit and the original to matter I often use a work around. I copy the text of the original then delete it. I then write the new 'edited' version and submit it as a fresh comment. (Corollary: If I fail to take such precautions I blame only myself!)