One of my favorite simple things is fog. It makes everything look different, look new, gives everything a new feel. Another would be holding something that has a history. I buy a lot of used stuff not because it's cheap, but it's fun to imagine what it's been used for. For example, there's a name carved in the back of my Aires 35-V. I like to wonder what Mr. Bruehl used it to shoot. Or what kinds of evidence my dad shot with what is now my OM-1n. Or what the wife's No. 1 Kodak Jr. was used for, who owned it, etc.