I want to send a greeting card online. Through snail mail. Without printing. Any good sites?? Only found one.?

Wanted to know if there are any sites besides Hallmark.com where I can order one single greeting card, put a message in it, and send it off. Any tips??

Ebay Printing online Postage Problems. Will only print the page with the sample not the actual postage.?

I am trying to print online postage through paypal, but after clicking the print label button, my printer will print the page (pop up) i am looking at with the print lable/ print sample label buttons. Can anyone Help?