Plug the lamp into the outlet that you think corresponds to a convenient light switch. Test it by turning the light switch on and off.
Put the lamp in the place where you want it.
Attach an extension cord if the cord on the lamp isn't long enough to reach from the outlet to where the lamp is going. The cord should be long enough to reach between the two locations while being run along the wall, to minimize tripping hazards.
Install a remote control switch in a convenient place that will control the outlet that the lamp is plugged into if you don't have any outlets that are controlled by switches in your home. Alternatively, hire an electrician to install a switch that is connected to an outlet, but this option will be much more expensive.