I love Jupiter's idea, personally. Remember the other day when I asked if the game of horseshoes have ever been featured on a card, and had several pointed out to me? What would it hurt if each of those cards got tagged? To settle the thunder/OKC Thunder dispute, I see we already have a tag called Fire. I don't know how to see all the cards tagged with Fire, but I'm willing to bet nobody has tagged every Chicago Fire soccer card with it.
I'm going to reevaluate how I collect after the new year. It's just getting way too expensive for the new stuff. Sometimes I just want to buy a pack, not a whole box or even blaster.