NO! NO! NO! And NO!
The answer: Purchase a Powerline Ethernet Adapter which creates an Ethernet network out of your homes electrical system. Plug one adapter into an electrical outlet near the router attached to my basement office computer. Attach the router to the first adapter. Plug the second adapter into an electrical outlet in my wife's office. Attach an Ethernet cable to that adapter and her computer... and like magic, her work laptop is attached to the Internet via the router in the basement. The connection speed is that same as if she was connected to the router in my office.
I went with a Netgear HDX101 200Mbps Powerline HD Ethernet Adapter because my wireless router is also a Netgear model. It cost around $160.00 and installation took the time to plug the two adapters into the electrical outlets on the wall!