I love the farmer's Market! I will usually find someone that wants the other half, or if I have my friends kids with me I just give it to them, or i'll have them give it to me in one of those little wax baggies and put it in my purse for later.
I seem to be able to do this with sweets, but man... when I get my hands on those croissants from the 'Hot French Guy' I buy 3, eat 1 and give the other two to my favorite organic produce/meat sellers down the street for breakfast. And I don't feel one bit guilty.
They import this special cream from their family farm in south france to make sweet butter by hand and that's why they taste so good.