So, I came up with a couple of designs for you to print out and pass among your loved ones.
The cards are about an A2 size (4" x 5.5"), double sided (so you'll have to feed through printer twice) with envelopes to match! You know everyone loves a super cute envelope liner. Well, I just designed it on the envelope itself. All you need to do is print, cut, fold, glue and you are in some serious business :)
They are all available online at the following links; (BTW, if you don't feel comfortable downloading these, you can just opt to print them straight from the website.)
1.) Manly Card (Outside)
http://www.docstoc.com/docs/71001949/Manly-Card-(Outside)
- You'll notice black lines boxing in the card. Make sure and cut just inside of those lines, fold in half and you'll have the perfect sized cards. This applies to the other cards I've uploaded below.

2.) Manly Card (Inside)
http://www.docstoc.com/docs/71002506/Manly-Card-%28Inside%29

3.) Manly Envelope & Liner
http://www.docstoc.com/docs/71001573/Manly-Envelope-and-Liner

4.) Girly Envelope & Liner
http://www.docstoc.com/docs/71006029/Girly-Envelope-and-Liner

I'd love to see some pics of someone's completed set :D
Happy Heart Day and ENJOY!