This has got to be the most straight forward idea ever.
But it took me three years to figure out.
Stick a table cloth under the high chair!!
Catch the mess, shake it outside. Wash the table cloth when needed.
Life has been SOOO much cleaner!!
(Especially since the girls have been into rice lately. That stuff's a beast to clean off the floor -- not to mention feet and socks.)
WHY!?! WHY!?!? Didn't I do this years ago?!?
Can't recommend this enough!