I'm sure you've seen these kind of invitations before. You upload your picture to a premade format and pay anywhere from $1 - $3 for one photo card. Well, I've got a cheaper way to make these and it doesn't involve a coupon code. Here's what I do:
I design my own invitation in Photoshop (you can use any digital editing programs). I make the measurements the same as I plan on having them printed. This way I don't have to worry about any cropping. Then, I save the file at the highest resolution possible.
Last, I upload these to a drugstore's online photo department. I have them printed just like a regular photo. Then I just pick them up an hour later. It's easy, quick, and cheap to do. The invitations ended up only costing $2.85 for a set of 15.
*If you've never done this before, I recommend having just one invitation printed to make sure it looks just how you want. Then order as many as you wish.
P.S. Give you one guess what the theme of the party is going to be.