Heidi Burton works in all sorts of styles, but, by far, the one I love the most, are her totally endearing, absolutely adorable greeting card illustrations...each little person has so much character and charm, yet they're rendered in the simplest of ways.
It's a great skill to know when to stop while you're drawing, and I think her work exemplifies that completely- neither a line nor a dot too many...and they absolutely make you smile.
I even love the style of her blog- each post hand written, then scanned in...it's full of gorgeous little design touches.
Her work is available on both etsy, and folksy, and she has a flickr, too...not that i'm suggesting you stalk her, or anything! :)