I really like the advice...."not worry what the bike store employees think of you. They should be worried about what you think of them".

Yep, when you're test riding, you're interviewing them. Will they fit you correctly on the perfect bike *for*you*? And, long term, will they take care of your bike? So, wear whatever will make you feel comfortable riding and testing that potential, shiny new bike.

Where in rainy Wisconsin? Note that there were two bike shops in the Milwaukee area that don't allow test rides; hopefully they've cleaned up their act. Personally, I just walked out of them--they didn't deserve my business. One really surprised me. I still won't go back there even though I get a discount through the local bike club.