I'm a SAHM, but DH is in in the military. He gets 30 days leave a year. However, if we're gone over a weekend, he has to take those days as well. He can accrue up to 60 days in the till, and when he retires he can take terminal leave, using those 60 days. However, if he hasn't taken his leave by 30 Sept, he loses anything over 60 days. Right now, he's got 30 days use or lose, but he's in the Middle East and can't take it. I think he can get a waiver to carry the use or lose over because of this situation, but I'm not sure when he'll get to take it.