Dumb Noob: what do you LARGE pots with drainage holes on top of to catch water?

Say you have a 1-2 foot diameter pot full of very heavy dirt/plants. It's indoors. There are drainage holes. What do you put the plant on top of to protect your floors?

With smaller pots (like the little basil plants you buy from the grocery store), I've just kept them on my sink, counter, or on top of a round kitchen plate. That wouldn't work when it's too large or heavy.

I've also heard of people using a plastic pot inside a decorative one, but 1) I want to avoid food I'm growing being in a plastic pot, and 2) it'd get super heavy/hard to lift such a big pot out of another one.