Originally Posted by LegalEagle

You are much better off booking and using one $25 on the outbound; then making a second reservation and using another $25 on the return. Same price as booking a round trip, but if you book it as a round trip you will only be able to use one discount coupon.

And yes, the Airtran computer reservation system is taking the discount coupons not only for flights to Florida, but on all their routes. Considering that their fare to Minneapolis or St. Louis from Milwaukee is only $39 to start with, after discount it is $14 each way plus tax.