Ability to have expired vouchers just "fall off" rather than us having to manually void them. This was a feature that Booker had. For example, a client has a 12 month unlimited membership, they use 5 in 1 month, next month they use 2, we have to manually go in and void out all those sweat vouchers and if its not caught we can have hundreds of sweats that need to be voided manually. In Booker, the expired vouchers just fall off. However, we want both options because we sometimes extend the vouchers and adjust the date if we want to.