Clean them, store them flat (stacked like panckakes) and keep them off cement floors. A piece of plywood between floor and the rubber is all you need.
2001 Focus ZTS 2004 WRX
"I'm just here for the camping"
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TEAM P.I.T.A. FTW!
"I'm just here for the camping"
http://www.facebook.com/profile.php?id=687620231
TEAM P.I.T.A. FTW!