Buying characteristics: in San Francisco is a doctor who can do surgery to obtain strength, agility, perception, etc... and add health:

Buying perks: In NCR you can buy(prices may vary):

In sin city you can attach plates to your character, which will give portability to 100kg of weight each! (you can buy 4 plates) it is a pleasure [1.000.000]$ you must have a character with 250 repair 250 science