Start going through the kitchen drawers to look for your missing stuff. Women tend to toss all the loot they collect into random drawers for some reason. Once, I got out a fresh towel in the kitchen, went out to work on the bike and then came in to wash up. Of course, the fresh clean towel was gone, so I tried to hunt up another. In one drawer, I found a sandwich bag with a bolt, a nail, a stamp and a run pin inside. In a change purse in the next drawer, I found the nut and washer that went to the bolt, a spool of thread and a shoestring. They have this odd nesting instinct that forces them to go around grabbing random items thinking, "What's this, what's this", answering with "Thing, thing". Since they never get as far as what sort of thing, everything gets mixed up and tossed in drawers, bags or boxes with absolutely no thought as to what might belong together, Especially parts or instruction books that are needed to operate some very expensive item.
As for the coloring books and colors, chuck 'em into that big bottom drawer in the kitchen. But, first check it for your stuff.