This deal has ended.
Signup for the Chase Ink Cash Business Card and get up to $250 cash back. When you make your first purchase you get $150 back, and when you spend $5000 in the first 3 months you get 10000 bonus points, redeemable for $100 cash back. You also get 5% cash back on business purchases (like office supplies, wireless, phone, etc). Even better there is no annual fee and additional cards are free for employees.