Canvas Accessories from Forzieri
If you're after a thrifty option, your best bet is this Vanessa Bruno Tote Bag. It's a great item, while not very costly. Another good option is this Carven Tote Bag. While the price is rather reasonable, be sure that this item will become a valuable addition to your wardrobe. You might also want to consider this Maison Martin Margiela Tote Bag. The price is very reasonable, but the effect on your wardrobe will be pretty fantastic.
If you're looking for a bargain, take a look at this Corto Moltedo Tote Bag. While the price is very reasonable, this piece is an easy wardrobe update.