Several months ago I modified keybindings in the left hand area to quickly move between bars and markers. Since it's much faster than using the mouse or the default keyboard shortcuts (which require your right hand), I thought I should share it here. So, if you're interested, try these steps:
 
1. Back up your current keybindings.
 
2. Bind keys and commands this way:
 
   W = Go to start of this measure
   E = Go to end of this measure
   Shift+W = Previous Marker
   Shift+E = Next Marker
   Ctrl+Space = RTZ
 
3. Place your thumb on Spacebar, little finger on Shift, middle finger on W, and forefinger on E. If you have the "On Stop, Rewind to Now Marker" enabled, hit Ctrl+Space, with the little finger and thumb, once to pause (or stop without automatically rewinding to the Now time marker), and hit the keys again if you want to go back to the beginning of the project.
 
Hope that helps