Plume mini-routers promise a mesh network on the cheap

http://www.extremetech.com/wp-content/uploads/2016/06/plume-768x424.jpg 768w, http://www.extremetech.com/wp-content/uploads/2016/06/plume-640x353.jpg 640w, http://www.extremetech.com/wp-content/uploads/2016/06/plume-672x371.jpg 672w, http://www.extremetech.com/wp-content/uploads/2016/06/plume.jpg 1344w" sizes="(max-width: 300px) 100vw, 300px" />Plume pods plug into your wall outlets and form an instant mesh network for a lot less than other solutions.