IKEA: about 15 minutes (6.31 miles)
WALMART: practically next to ikea (a block away)
TARGET: practically next to ikea (a block away)
OFFICE MAX (maybe it was a staples?): next to Target
KMART: about 10 minutes away in Center City (Market & 11th) at the Gallery which is a really ghetto mall.
COSTCO: at King of Prussia. Which is only like 13 miles but there is always traffic so it takes like 30 minutes.
KING OF PRUSSIA: one of the largest malls on the east coast, they have pretty much any store you want.