Battery Free Wireless Mouse
Most wireless mice come with rechargeable batteries and a charging dock, but that means infrequent periods of none use due to cradle placement. To escape this inevitable problem some folks developed a wireless mouse sans batteries. The mouse operates by drawing its power from the included special mouse pad. Sure this limits placement, but at least you won’t get your cord snagged time and time again, and no more charging.
Available here for $45.