I always try to keep a few extra egg cartons hanging around they can be used for many things.
1) Paint cups- each color can have their own cup and you can just toss it out when you're done.
2) Bead sorting- different sizes or colors
3) Games- Google Egg carton games some really fun things come up.
When your daughter decides to poke holes in the eggs and the eggs leak
all over the cartons you can put what good eggs are left in the spare
I guess it's time to put some duct tape on the fridge door so Squeaker can't open it on her own.