If you'd rather not spend much, your best bet is this Tahari Shirtdress. It's a great piece, while not very expensive. Another nice option is this Madewell Shirtdress. While the price is rather reasonable, be sure that this piece will become a great addition to your wardrobe. You might also want to consider this French Connection Shirtdress. The price is very reasonable, but the effect on your wardrobe will be pretty fantastic.