Head to Thinkgeek where they have a great selection of bags, backpacks, and wallets marked down as much as 80%! Some best bets include:
Batman Justice League Card Wallet with Money Clip – $3.99
Star Wars Darth Vader Briefcase – $24.99
*Out of Stock* Boba-Fett Backpack – $19.99 $25.99
Shipping starts at $8.95 or is Free on orders over $75.