Discovered this weekend when once-a-year cooks were in the kitchen brandishing knives: adhesive bandages that are waterproof and don't fall off five minutes after you apply them. These actually stick, so no begging off doing the dishes. Another plus: they're not that icky beige-pink color all over.
Say hello to Nexcare Waterproof Bandages from 3M. Available in most drugstores, a package of 20 assorted shapes runs about $3. Keep a couple packs in the kitchen on standby.