[Jorge]

Probably doesn't count, but #1 of best is my dog. She's a full bred and the best companion ever!
#2 my house - it's nice to have a place called home and be able to do what we want with it
#3 paying for classes at the community college

Worst:
#1 buying into too many multi-level marketing schemes because I wanted to help friends and/or family and make a little money on my own
#2 buying a motorcycle that I never rode
#3 spending over $1000 on a bike instead of trying to find something more reasonable