Some hacks exist almost invisibly once implemented. When the delivery man came to install our new fridge, he (also a parent of a toddler) commented on how we installed our son's booster seat to our kitchen chair.
So here's our simple way to keep our wooden chair goop free and minimize scratches and other marring from the booster and its straps:
Materials: 1 standard bath towel, two safety pins, chair, and booster seat. (If you're booster seat shopping, we LOVE our Fisher Price booster seat. See our seat comparison for more information.)
Step 1: Find standard size bath towel (ducks not required, but bonus points for any waterfowl). Lay towel over chair so seat is fully covered and there are a few surplus inches overhanging front edge of the seat.
Step 2: Safety pin the rest of the towel (about 1/4 of the total length) behind the chair. I used brass safety pins that don't rust, but the normal kind will probably suffice unless you hose your child down in their booster seat (in which case you're probably not using a wooden chair to begin with).
Step 3: Fasten booster to chair normally. When the towel shows signs of peach yogurt and/or pureed yams, just remove the safety pins and machine wash.
Voila! Another Jones secret revealed. You are now one step closer to world domination