Such is the case with the Pathfinder Condition Cards from Paizo. There are loads of conditions in Pathfinder and they are part of what makes the game interesting. Unfortunately they are another book-keeping thing to keep track off and can be easily forgotten in the heat of combat by both the GM and players. The Condition Cards aims to solve that by giving you a pack 'playing-card' sized cards that you can hand out to players (or use yourself as GM) to help you track them.
There are 52 double-sided cards; basically 4 of each type, so 13 different kinds of cards. Each of them illustrated with a Pathfinder goblin suffering the effects of the condition, as well as the in-game effects. The effects on each side of the card is related so, for example, you have 'grappled' on one side and 'pinned' on the other. The cards are even colour-coded to make it easy to pick them out. Great!
The Condition Cards aren't quite perfect though, there are a few minor rules errors, and it would have been nice if they could have included the page numbers to the rules in the PFRPG book, but these are genuinely minor quibbles.
I'm of the opinion that these are an essential purchase for any Pathfinder group. They are cheap ($10.99), colourful, fun and very useful. Highly Recommended!
Rating: 4.5/5 (they drop .5 for a couple of little rules mistakes and no page refs)