OK, so I have a few questions about this program.
I want to start doing this exercises, a friend of mine recommended Insanity, and told me it didn't use home gym equipment (as right now I don't have it,and it will be a few month before I can buy it). My question is (and I have read the thread but I'm still confused)
1-Whats the difference between P90x and Insanity?
2-I'm thin (136 lbs, 5 ft 8in), and I will start Insanity, will it help me build muscle (of course I will follow the nutrition program) or is it only to lose fat or will i be skinny if I do Insanity? 3-Should I consider some other program?
4-Do I have to do for example Insanity in the morning and something else after work?
Thanks

(and sorry for the stupid questions)