If you're on a thrifty budget, your best bet is this Eliza J Shift Dress. It's a fantastic product, while not very costly. In this price range, you can also look at this Topshop Shift Dress. It's also a popular item and won't break the bank. You might also want to consider this Eileen Fisher Shift Dress. The price is very reasonable, but the effect on your wardrobe will be pretty fantastic.