I'm of the opinion that a person can never have too many notecards. I try to send 2-3 notecards every week so am always on the lookout for new ones. Here's just some of what's in my stash currently.
This lovely pink notecard set is from Crane Co. You can't beat the quality paper that Crane uses in its notecards. These cards love a good fountain pen.
The dragonfly cards are a little glossier than the Crane notecards, but the image is just so lovely.
This homemade notecard includes a photo from one of my favorite walking paths in St. Paul, MN. Love to see the seasons change at this park.