Use the quick access menu
Right-click in the bottom-left corner (or hold down the Windows key and press X) for a text-based menu that provides easy access to lots of useful applets and features: Device Manager, Control Panel, Explorer, the Search dialog and more. Download the Win+X Menu Editor and you'll be able to further customise the list with programs of your own.
Make access easier
If there's an application you use all the time then you don't have to access it via the search system. Pin it to the Start screen and it'll be available at a click.
Start by typing part of the name of your application. To access Control Panel, for instance, type 'Control'. Right-click the 'Control Panel' tile on the Apps Search screen, and click 'Pin to Start'. If you're using a touchscreen, press and hold the icon, then flick down and select 'Pin to Start'.
Now press the Windows key, scroll to the right and you'll see the Control Panel tile at the far end. Drag and drop this over to the left somewhere if you'd like it more easily accessible, then click the tile to open the desktop along with the Control Panel window, and press the Windows key to return you to the Start screen when you're done.