The $2.00 off THREE Wet IAMS Cat Food coupon just reset recently. Here are a couple deal ideas for you:

Walmart

Buy (3) 3 oz Iams Purrfect Canned Cat Food @ $.58 each ($1.74)
– Use $2.00 off THREE Wet IAMS Cat Food

Final Price: FREE! (And $.26 money maker!)

Target

Buy (3) 3 oz Iams Purrfect Canned Cat Food @ $.59 each ($1.77)
– Use $2.00 off THREE Wet IAMS Cat Food

Final Price: FREE! (And $.23 money maker!)

Actual store prices may vary, depending on your location, so YMMV with this one.