It might seem like a chore to plug in your microwave every time you need to heat up some leftovers then unplug it when you're done, but leaving your gadgets connected to power at all times wastes electricity.
According to the Department of Energy, electronics and appliances use energy even when they're turned off. That's true of phone chargers, laptops, televisions, curling irons, and kitchen appliances.
Connecting your devices to a power strip can make it easier to turn off multiple unused items in one go.