Life advice..?
Future is uncertain, eat dessert first.
:-P
Dessert is tasty even when you're already full, so if you're going to eat some eat it first to avoid obesity. This might not work if you have a strong habit of clearing your plate even if you don't need more food.
Looking thru the Repository Repository I can't find a nice category for a lot of real life or self help advice that has been posted here over time. Sure some belongs to the Boring Advice Repository but the following you surely wouldn't expect there:
Lets start with lukeprog's all-time favorite
What other real life advice would you like to see here?
There are also very good posts that might be relevant to a rationalists life but could also go into some Rationality Advice Repository - but then all of LW falls kind of into that category. Some examples:
I see that I'm unable to draw a clear line on what falls into this category and thus suggest that specific rationality advice of 'this kind' be left out.