Keyboard shortcuts can save tons of time. I find myself using them more than I do menus & the mouse - they are just so convenient & increase my productivity. Sometimes you may not like the Mac's default shortcuts, so for the most part there is an easy way to change them. I am going to change the 'Dictionary' shortcut from 'Command Shift D ' to 'Command D ' - I think it's a bit easier. Listen to the podcast for all of the details, but here are the basics. First, Open 'System Preferences' 'Apple menu->System Preferences'. Next, choose 'Keyboard and Mouse' Now, select the 'Keyboard Shortcuts' tab. Find the one you want to change - in this example, I chose 'Look up in Dictionary'. 'Double Click' on the current shortcut, to select it. Once it is selected, then press your new keystroke. You will see it change in the box. Look below, I just changed it to 'Command D' Mess it up, and want things back to defaults -- Press the 'Restore Defaults' button. Press the '?' and it will bring up the help menu, and will give you more ideas, and more in depth detail on how to change things to your liking.