One of the great sets of enhancements using a CyanogenMod rom instead of a stock rom is the launcher. Cyanogen includes an altered launcher called ADW.Launcher that includes lots of extra settings and interface tweeks. One of my favorite is the “preview” option, which gives you an expose (as in OS X Expose) style view of everything across the different homescreens on your device. By default you can bring it up by long pressing on the dots on the left or right bottom of the screen that show you which area you’re currently on. However, in the ADW.Launcher settings you can change the keybinding for the home key if ADW is already the active app. By default it just snaps you back to the main screen, but you can swap it to preview instead. Great usability change for me, lets me scan through my apps and widgets very quickly.