Got a call from AA today. They left a message saying my wifes miles expire on Sunday, and I can restart the clock on them if I pay $159.00 (she has 159,000 miles). I instantly went on line and donated 1,000 miles to charity. They say the transaction will post within 48 hours, which gives me at least 6 hours breathing room before the account expires. Hoping someone can tell me (and its true) that they sweep every night. Otherwise, I guess I obsessively log in and check. Although I appreciate the call from AA, I really wish they still allowed Awardwallet to access their site. Lesson learned and I will definitely be more diligent in the future though.