I know this topic has been addressed many times, but here goes.
I have a $200 voucher from USAirways that is set to expire in January. As I have no personal travel plans before that time, can I book a fully-refundable ticket now (with no intention of using it), and when my plans "change" later in the year, use that ticket for my "real" ticket?
Or will they catch on and invalidate the $200 from the voucher?