Kaboost is a reverse booster; it fits on the bottom of your chair, lifting it up to the table, rather than having a seat sitting on a chair. We have a cushy booster that sits on top, and my two year old wouldn't sit in it because his brother (five) wasn't in one himself. This led to lots of standing in the chair to get up to the table to eat. I had read about the Kaboost in a magazine and a day later, was stopped by a woman in a store, and she handed me a card. Her son created the Kaboost. I told her I'd just read about it myself and thought it was a great idea. It folds nicely and is easy to clean. I recommend it thoroughly.
Kaboost Portable Chair Booster is recommended by teafortwo