I agree with this...I love everything about Southwest. This is the only thing that gets in the way of a five-star rating. I almost always fly Delta or Southwest, but because my plans for work/personal travel frequently change, I REALLY appreciate Delta's wallet feature. All unused vouchers, travel funds, etc...are saved under the wallet in your profile and it is wonderful not to have to wonder if there are unused funds floating out there. There are already things I like more about Southwest than any other airline and if you could do something like this in the near future, it would really take the airline to a new level!
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