When you hang them close to each other, they form a group of common things you use, wear. You remember places and people, and maybe the time of day, too, or whether it was sunny or not. It's possible that what is remembered has already been filtered, carefully selected. The selection is not felt, because of automatic mechanisms that erase what need not be remembered.
Was a drink spilled on the sleeve? Did a hand touch the back of the collar? Questions bother, because there are details that need recognition. Digital instruments can be helpful for these questions. Their pixels are tools for remembrance, especially when zoomed. But as you zoom, are you magnifying something in memory, irrecoverable absence, or something that wasn't even there in the first place?