Use your laptop as a gadget charger

This one is obvious, but we'll mention it anyway. If you're leaving the laptop powered up overnight, you can always use it as a makeshift USB charger for a couple of other devices. Some newer Toshiba laptops even have a USB pass-through mode, so USB charging works even when the laptop is powered down. Some third-party aftermarket laptop AC adapters also include a USB port or two for charging extra gadgets as well.