"TotalSpaces" introduced OS X 10.5/6 "Spaces" into 10.7/8. The popularity of the application was so strong, BinaryAge ("TotalFinder" producers) bought it and brought the developer in house. Since, I can't recommend it enough (no, I'm not a company shill) . "TotalSpaces" 10.9 Mavericks "TotalSpaces" main page for those new to the application. EDIT: Noticed the mod's moved my original post while I was editing it and I thought I placed it in the wrong forum. I suppose this isn't 10.9 related?