I bought these cute mini note cards + envelopes a while ago (I think from Michael's $1 section) and just finally used one yesterday. Sometimes if I don't see it, I don't remember that I have it. For size reference, the stamp in the background, Dream Text stamp by Stampendous, is 3.75" by 5".
I embellished the card with some paper scraps, a paper flower, a colored brad, and a borrowed-from-
Stephanie scallop punch:
I wrote Greg a little note inside and tucked it into his agenda after he went to bed. Not super fancy, but cute for a note to Greg.