Calculator becomes 10 Key touchpad via USB
So you have limited space on your desk and enough gadgets to fill your closet. You still need a calculator for those tough commission check calculations but also need a 10 key numeric touchpad because your laptop is miserable for inputting numbers, well ThinkGeek has the answer. This convenient device is a standalone calculator which also transforms into an input numeric device via USB. Expandable cord and full size buttons. Runs about $35.