RE: booster seats
If the Cooshie Booster it too short, then the inflatable FY one will probably be too short too. It barely inflates (IMO). I had the Safety First Fold N Go booster and was very happy with it. Other moms in my playgroup had the FY version and they were happy with their too.
When my DD didn't want to use the high chair anymore (18 months or so), we used the Safety First booster at the table for several months.
HTH,
Beth, mom to older DD (8/01) and younger DD (10/06) and always missing Leah (4/22 - 5/1/05)