We have a pretty nice Cuisinart air fryer/toaster oven (model is TOA-70 I think), and it is the best. I basically use the "real" oven only for proper baking (very rare) and larger frozen stuff (still fairly rare). All leftovers and "heat and eat" stuff goes into the toaster oven. I also use it for toasting, just to keep the popup toaster off the counter, and as an air fryer I like the results from its tray-like basket much better than the icy-center foodballs that come from trying to get a reasonable amount into the deep but otherwise tiny baskets of cheaper air fryers.

For an actual junk drawer item, we have a 50-foot reel of twist tie (with a little guillotine cutter) that has proven invaluable for lost twist ties, torn garbage bag pulls, arts & crafts, and even the occasional picture hanging until we got a proper reel of that wire.