Leftover Base/Common Cards? What to do with them?

Just wondering what everyone does with all the multiple copies of base cards they get when breaking boxes.

I recently just broke an A League box and have the whole base set and many, many multiples. Planning on getting another box to try and find some more inserts, but I feel bad about all the base cards that will go to waste.

What do you all do with the extra base cards in all your respective collections? Throw them out? Give them away?

Donate them to a Children's hospital or a primary school or even an op shop.