I used to have all my customers mailing address on an app that I could bring up on my desktop and print an envelope. When my computer crashed, I lost them all and now cannot find the app I used. It was easy to click on tab, bring up my addresses and print the envelope. Used it to send them bills and to send them a payment or what not. Anyone know of a good free app that will do what I want? I tried to do it in Word, but to me, it was to complicate and could not get it to save my addresses.