I don't know about you but one of my resolutions this year is that to get my personal calendar organized so that I won't forget another birthday again. If you're anything like me, I start out each year with good intentions and my mid-March I'm flying by the seat of my pants when it comes to sending out birthday and anniversary cards. I think I've found the solution though with Jack Cards.
In addition to the reminder and your order, they will also stamp the envelope and address it. All you have to do once it arrives is sign your name [or perhaps I'll actually have time to write something now] and pop it in the mail.
Normally with a site like this, I would imagine the cards to be a bit grammie-esque but their online inventory is as good as my favorite card shop carrying everything from letterpress to funny, cute cards.
A girlfriend of mine has already given the site a test run with two dates and has been very impressed with their delivery turn around and even the proper stamp price for those pesky square format cards.