The Cottonelle month long Register Reward works on the travel size Fresh Wipes.  Here’s how to get one pack for only $0.24:

Cottonelle Fresh Wipes Trial Size $0.99
Buy 2, Receive $1.50 Register Reward, Limit 1
Pay:  $1.98, Receive $1.50 Register Reward

Final Price:  $0.24 each

Thanks, Wild for Wags