For the kitchen - salt & pepper (& any other spices you may need/want), foil (great for pouch meals & easy cleanup of pans, various sizes of ziploc bags (good for leftovers & taking snacks to pools, parks), plastic cup (if you have a small child). Food for breakfast, lunch and snacks (we buy this when we get there).
Woolite for the washer/dryer.
I also pack a collapsable cooler. Good for toting drinks or sandwiches to the pool. We also take pool toys (toypedo, footballs/balls made for the pool, diving rings, I pick up some noodles at the grocery store when we get there). Small beach bag to pack stuff to take to the pool.
A nightlight for the bathroom. Small first aid kit.
That's all I can think of now.