I picked up these TP-Link Smart Wi-Fi Plugs from Amazon. I thought they wouldn’t be useful but I found some good uses cases for them.
They are rated for 15A and I have used them with a heater and lamps.
If you are travelling or need to control a device remotely that is plugged into a wall outlet then this could be useful for you. You can also get a in-wall switch that replaces a regular light switch.