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.
"Weird" is too general here.
The advice on "Five Geek Social Fallacies" has to do with dealing with people who are not weird but rather unpleasant. The examples used are of people who are obnoxious, offensive, smell bad due to poor hygiene, or hassle newcomers. These have to do with behaviors (or lack of care) that are not distinguished by their eccentricity but by causing harm and aversion to others.
So, for the boring advice:
Distinguish harmless eccentricity from harmful eccentricity. You may travel in weird social circles, wherein you recognize that being weird doesn't make someone bad ... but just because someone is weird does not mean that they are nice, either.
(Weird social circles may also choose to exclude some behavior that is harmful but not weird. For instance, there is nothing weird about making jokes that hinge on gender stereotypes (e.g. "women are bad drivers" or "men are buffoons"); these are quite common and ordinary, found in mainstream sitcoms, stand-up comedy, and so on. But a weird social circle that cares about being welcoming to gender-nonconformists may want to say that gender stereotyping is not acceptable.)