I hung some plywood walls in my shed/shop: figured that I could place a screw wherever I want to hang tools...

I’m on the fence about finishing them though? I’m just not sure I want to put the effort in when I have plenty of other things to do.

But I’m also not sure how plywood will handle garden tools if I’m not great about cleaning them up after use...

What have others here done (Aside from paint...)?