Every now and then I want to run a given vim command on a bunch of lines. In the past I would have either executed the command and then pressed j. (Hi J-Dot!) to go down and repeat the command. Or if the command were more complex I would have used a macro and done it over and over with @@.

Well, for simple stuff on a range there is an easier way! Lets say you want to delete the first two words of a bunch of lines you have highlighted. This is all you have to do:

1
'<,'>:normal d2w

SWANK.