Hi!
Believe me when I say, this is not what I wanted this late in my life but life deals you a hand you have to deal with. I other words, QSL cards are not on the top of my list things to do. I will get to it but in time. I did check the web site but there is not option for GIRDS.
Regarding the link Damon posted earlier:
http://www.radioqth.net/qsl.aspx
You can put your grid(s) and county in the MISC field in the "Optional Information" section. It will display that information below the address on the card. This worked well for me, before I went back to doing QSL cards with graphics on them a couple of years ago. It would have been easier if that page had separate fields for the county and grid(s), but this isn't bad. Put 4 cards on a page, and it works with Avery 8387 type postcard stock. Then the cards could be trimmed to the standard QSL card size.
73!
Patrick WD9EWK/VA7EWK http://www.wd9ewk.net/