Today, I'm loving our Fisher Price Booster Seat. I moved with two of them in a suitcase to have a place to feed the girls for our relocation/transition and it has been so worth it. I think the size and the fact that it's on the floor is a major plus for the girls. They haven't just learnt to sit down on it all by themselves (which requires a lot of body coordination for a one year old I tell you) they're also crawling and standing and pushing and pulling and climbing it. All this helps them gain confidence in their mobility and abilities and I'm lovin' it.
Plus it's super easy to clean.