how can i make better design decisions?

1. 80/20 rule
2. accessibility
3. comparison
4. convergence
5. cost-benefit
6. development cycle
7. errors
8. expectation effect
9. factor of safety
10. feedback loop
11. flexibility-usability tradeoff
12. form follows function
13. garbage in-garbage out
14. hierarchy of needs
15. iteration
16. life cycle
17. modularity
18. normal distribution
19. ockham's razor
20. performance vs preference
21. prototyping
22. redundancy
23. satisficing
24. scaling fallacy
25. structural forms
26. uncertainty principle
27. weakest link