Oh Staples, I know you well.
When you work from home, you frequent Staples. It's just a fact of life. There's no supply closet for me. Instead, I get to buy all my supplies, but at this location, the employees remember my name and they're unusually helpful and nice.
They'll take you right to the aisle where whatever it is you're looking for is located and recommend products if necessary.
Staples has everything you could possibly need or want for your home office, from furniture and pens to planners and mouse pads. And their prices aren't bad either, but certain items you may be able to get cheaper at Target or somewhere else along those lines.
But if you're in to one-stop-shopping like I am, Staples kicks ass.