How Do You Spend Your Satisfaction Points?

I usually like to get Speed Reader (makes leveling up skills quicker), Frugal, and Storm Chaser for most played sims. After that, it depends on the sim. I use the reward/aspiration traits to round out their personalities. The ones I never get are the needs related ones. If you take out the basics of every day life, the sim just becomes a task grinder, and that’s not for me. If I really need them to complete a task before nature calls, I just cheat their need for that task.