Changes to desktop interface

Viewing items in a store on the desktop has changed for the worse. Please have an option to view items the old way. Half the screen is useless to me (home etc. on the left, categories on the right). Only 48 items are now viewable per page and they are in a straight line down making browsing completely obnoxious. Please have an option of (at least) 96 items per page, at least four across and have the sidebars collapsible for people who don’t use them.