E.E.
http://www.toysrus.com/product/index.jsp?productId=2861764
This one is great- It's a booster seat that straps to the chair. It's very easy to clean, my son is comfortable in it, and it's so cheap, I keep a second one in the car for visiting other people or for going out to dinner. I have never had any problems with it either- there is no danger of getting an arm stuck or anything. My son has been in it since 6 months and he's a year old and still fits fine in it. My friend has her 2-year old twins in them and they are chunkers!