If you're in the market for a new Samsung Galaxy S4 and need to pick up some printer toner, a pack of ballpoint pens, and a new label maker, then you might just want to get yourself to your nearest... Staples. The office supply store is now carrying the Galaxy S4 for all major US carriers (that'd be AT&T, Sprint, T-Mobile, and Verizon), with varying availability in stores and online depending on your carrier of choice.
The Galaxy S4 for Sprint from Staples is available online only in 'white frost' or 'black mist' for $199.99 on a two-year contract (or $715.99 off contract). Going for Verizon (again, white or black) will be $179.99 with the standard two-year contract or $715.99 without, though they're currently on preorder and not expected to arrive in stores and ship until May 30. T-Mobile currently only has the white Galaxy S4 available via the Staples website ($249.99 on contract, $715.99 off) and it's supposedly available now in stores. AT&T's the current laggard in Staples availability, with the S4 only to be available in stores, with no publicly projected date of availability.
So go grab yourself a ream of paper, get some business cards printed, and pick up a Samsung Galaxy S4 while you're at it. Especially if you're looking at Verizon - it's $20 cheaper on contract through Staples than the carrier.