listen just hit the main three for starters. Home depot, lowes, and walmart. loosen up your belt and stuff the paint in your pants. start with two and when you get more confident move to four. don't get greedy when you don't know what your doing. walk around casually till you find the paint and dont look up EVER. just be cool and walk out. paint doesn't set off detecters. if you hit three stores for 2 cans each thats three fills and your set for the night.