Get & on/off wire switch & attach it anywhere on the elect. Wire. Little 1" squares.

If you have a smartphone or use something like Alexa in your home, you could purchase a smart plug that plugs into a normal plug in your wall. You then plug your lamp into the smart plug. You download an app onto your smart phone or link it to an Alexa type device and control the on, off and some of these smart plugs have a dimmable function also, with your smart phone or just tell Alexa to turn it on, off etc. Home Depot, Lowe’s, Amazon and Costco all sell them. I purchased a package of two for around $20 at Costco. Obviously this is a more expensive suggestion than the previous ones and won’t be everyone’s solution, but it’s easy to do and use and fun to just tell Alexa to turn the lamp on or off and have it happen, and more importantly can be used to light an area by voice completely hands free. Walking into a dark room this can be useful as you don’t have to fumble in the dark locating a switch if you can tell Alexa do it for you. Google and other brands are also available.

I use those remote control (3 pack outlets) that they sell at Lowe's and home depot around Christmas time. I use them year round all over my house. They work great and last for years.

You can find this but in most hardware stores. Home Depot will have it around the area they have the drills.