Here's a very simple trick from Apple Mac Tips that is sure to save you some time.

If you have a Mac, forget about dragging an item all the way across your desktop to the trash can to delete it.

Here's what you do...Just click on the item you want to get rid of and press both command + delete at the same time to move items to the trash. This is really effective for someone like me who has a super-sized screen. I guess I like to think I'm gaining hours by using this method!