I love my craft Apron... I bought it at a craft fair with my crafty earnings a few months ago, and whenever I wear it it puts me in the crafty zone!
It's sweet and polkadotted, has big pockets, and gives me something else to wipe my varnish-y and paint-y hands on so I don't keep ruining my trousers.
Plus, and I know it sounds strange, but it's actually quite warm... it's just a nice thick cotton material, but in my chilly house in chilly England during this chilly winter (yes it's still winter in England, it's been lasting FOREVER), layers are a must.
And it's a bonus if those layers are cute polkadots that make you feel creative and artsy.