I bought one of these years ago, back when they were called "GameMastery Combat Pads" (or something similar), and out of all the accessories I've ever bought outside of dice, I think this item has seen the most use. It's a magnetic pad used to track initiative; I've used it for D&D and Pathfinder, and any game with an initiative mechanic will benefit from it. The pad itself and the magnetic counters are all dry-erase, so you simply write PC and monster names on them along with their initiative rolls, and rearrange as appropriate. Generally, in my group, one of the players is designated as the initiative tracker so that the GM has one less thing to do. Anyhow, I didn't realise it had gone away - but now it's back in the Paizo store. If you don't have one, I recommend picking one up; they're $24.99, but they'll last you years.