Hey gals! So I got this great idea from the Design Sponge site where you cut up old card board and make postcards from it! I've got a bunch of boxes left over from Christmas shipping stuff (stuff sent to me), and I've got a baby shower coming up this weekend, so I designed and am making thank-you postcards!
@ Violet yes! I mailed a test set to my parents and mom-in-law and they worked just fine. I did use a regular letter stamp, but a postcard stamp might work too, I'd just take it and get it weighed to be double sure. I knew they weighed less than what you can mail with a letter stamp.