I LOVE going to antique stores, and wandering around (and climbing over) all the random stuff. So much history, so much... dust. Even better if there are bins of stuff to dig through! -- Digging is so much fun. Makes me feel like an archaeologist.
One of the antique stores near my house has an entire little room dedicated to glass items (it makes me nervous being int there!) and all of the items are organized according to color. Sometimes the light in the room is really nice and it inspires me to take a photo.