Buy accessories online. Compare the price of the cables you buy at retail stores versus the price of buying them new on ebay, Amazon, etc. A $20 USB cable can be had for less than half that online (even after shipping). A $100 HDMI cable (for HDTVs) can be had for under $15 after shipping. Or compare blank CD or DVD discs. Ar check the prices of any other accessory. Things like printers, computers, DVD players, etc usually have very little retail markup. Accessories, on the other hand, have huge markups.