Wireless mice and keyboards are a great way to reduce the tangle of wires on your desktop but what do you do when that tiny USB receiver, the one about the size of your fingernail, goes missing? That’s what I asked myself the other day when I lost the receiver (also called a ‘dongle’) for my Logitech wireless mouse. The mice aren’t that expensive but I hated the idea of tossing one just because the receiver went missing so I did a little checking.