I have a further question on this one- we have a whole bedtime routine going- bath, bottle, bed. It works great at home, but needless to say its a little time consuming and inconvenient at someone else's house.

Does anyone else get around the bath-time thing? I've heard one person say they just do like a little sponge bath with a washcloth when they are out- anyone tried that?

ETA- to answer the original question, at my parents, we put him to bed after his bath and then when we are ready to go home, we just carefully move him from bed to car and then to bed at home. It has worked quite well.