we will be taking our 2 year old on the plane next month to wdw. trying to decide between a CARES harness (pricey), a carseat (no $$ but hassle) and just letting her use the lapbelt on the plane. she's a good kid who isn't likely to do anything but sit so i'm not so worried about her squirming and getting out of her seat. it's more about her safety than anything else... what do you use?
So, we just use the lap belt.

