I love my caffeine mug. One part retro, one part cool. I collect mugs, but only half of them are actually used to contain liquid. The rest make for good spots to keep money, pencils, make-up, receipts, bracelets, cutlery, keys, paper straws and whatever else I need to gather in to make my home look neat. This one contains spare cash and my keys. My collection includes Starbucks mugs, old ones found at Goodwill stores, and souvenirs from coffee shops all over the world. This one is from the Coffee Gallery in Haleiwa. Do you collect anything?