Compressed air is handy for cleaning the nooks and crannies of your electronics. Read Right ReAir Refillable Duster, available from CDW, takes compressed air and makes it more environmentally friendly because the can is refillable. Refilling the can saves you money, easily making up the slightly more expensive initial cost. Reducing the number of cans that need to be produced and then end up in landfills is also a big reason to choose the ReAir Refillable Duster: the can is refillable up to 100 times, and you can use a manual bicycle tire pump to do so. Check out another review from Kevin Kelly's Cool Tools [note that InstaOffice no longer carries the product, but CDW does].