Nothing at all. I could spoonfeed Elijah with very little mess - he was such a little piggy he sat perfectly as he just wanted fed!
Sebastian on the other hand, is a wriggly little monkey. He doesn't sit still for anything, not even food. Mealtimes for him involve piles of books and toys and constatnt stimulation to encourage him to stay in pne place! When he deigns to let me feed him (which isn't often) at least a third ends up on his face as he's constantly singing, bopping around, 'jumping' up and down in his seat while I try and aim!
We use all over bibs, a splash mat and I never wear decent clother when feeding him! Then we just let him get on with it!
Noah Gabriel 11.06.05 
Elijah Cameron 28.04.06
Sebastian James 15.05.08
Nathaniel Joseph 04.06.10