well, just look at it yourself, do you see anything you'd like different? If so, do it. Also, make sure its the proper size for a postcard ( i dont think there is a proper size, but a general one). Also, will you want to add text promoting the town? That sorta junk. as for charging, I really wouldn't know. If you do a persale thing, its easy to be lied to (friend's or not, u never really know), so me thinks, even if there was a contract, it'd be better for a one off deal. at least that way its gauranteed