if you're in a thrifty mood, your best bet is this Melissa Odabash Cover-up. It's a popular product, while not very expensive. Another strong contender for your wardrobe is this Milly Cover-up. While the price of this product is rather reasonable, it will surely attract a lot of attention. You might also want to consider this L-Space Cover-up. The price is very reasonable, but the effect on your wardrobe will be pretty fantastic.