You know the drill:  Restaurant.com vouchers never expire; you can change from one restaurant to another using free customer service; if a restaurant closes or otherwise leaves the program your voucher is put into your account in blank form; you can find restaurants all across the nation, so a great way to make vacations and road trips even easier!  I love these, have used them for years and have many friends who do the same.  Wait – are your surprised?  I mean that I have friends…