Apparently everyone does this. So here are mine. Like my lists of books, if I did this ten times I would generate ten different lists.
1. Burgers: well done. E. Coli.
2. Don't buy the second item on the menu (see my previous post on this). Relatedly for wine: order domestic or same continent. Imports tend to be over-priced
3. Insurance: only buy insurance for losses you can't afford, or if you have asymmetric information
4. Debit cards: don't use them. Cash or credit are strictly better options.
5. Shoes: one area where it is usually worthwhile to pay the premium. Prioritize quality (comfort, weight, stitching) over quantity.
6. Investments: only make investments without deadlines, timing is often where hidden uncertainty is greatest, so make sure time contingencies are on your side.
7. Identity: keep your identity small. (h/t Paul Graham)
8. Food: the food chain is acyclic. don't eat animals that can eat you
9. Butter is always better than margarine. Never use artificial sweeteners.
10. Premature optimization is the root of (almost) all evil in software engineering (h/t Donald Knuth)
11. Never rewrite from scratch (h/t Jamie Zawinski)
12. My phone does not notify me. I notify it.