I would like to get started in the postcard exchange and I have way to many boxes of 5x7 RC paper I would like to use up.
I know I would have to mail in a envelope with regular postage and I would cut them down to 4x6 size.
My question is, how do I put the info on the back.
Can I use a ink jet printer to do this or maybe print some info on stick on labels.

I have so much paper that I don't want to buy the postcard paper if I can get by with this way.

I hope I am in the right thread for this question.

Thanks for any advise.