Jeans & Polka Dots

I always feel a little silly wearing heels with jeans. I don't know why, but something about this outfit feels different. Maybe it's that these jeans fit me so well, or that tucking a button-up shirt into jeans with a belt just feels so classic. What do you think? Are jeans and heels a no brainer?

Details:
Shirt - Liz Claiborne
Jeans - Old Navy
Shoes - Target (old)