You just have to remember not to be intimidated by the sales people- they are not some high class shoppers, they are the staff, the hired help. If they get snotty remind them who is serving who. I would never be scared to walk into any store or ask for help. I never dress up to shop, always just designer jeans and a cute top, but I think my handbag and other accessories(jewelry, sdunglasses, shoes) always gives it away that I have money to spend. But no matter what anyone looks like they should be helped- most people who are very wealthy do not dress up to shop they just wear jeans and a tee, shopping is so casual these days.