This one is for all of you Windows command prompt fans.
When working with command prompt, it is often annoying to enter same command repeatedly. In order to avoid this, simply press F7 when using the prompt, if you had entered earlier commands during the open session, they will be displayed neatly as a list. Just move up and down with arrow keys and hit Enter to run your command.
The other not so cool way is to press the arrow keys either up or down when cursor is at the command prompt to cycle through all the previously used commands, however the list that pops up by hitting F7 is much more convenient than this though.