Last night I started applying Tuf-Foot to my dogs' feet in preparation for our trip to SD in a few weeks. The bottle was close to empty so I made a mental note to order more today. This stuff is out of stock everywhere! LCS, Double U, GDS, even Amazon and Walmart are out of stock. Maybe a few places overseas have some inventory, but I couldn't find any domestically. Anybody know where some might be available? Anybody have something else they use to prep/toughen paws for the season?