This tweak was based on the Easy IP Check tweak posted by Hugo Tremblay. Use this if you just want to display your IP address and not the extra information (default gateway / subnet mask)
And save as IP.BAT (save to your windows dir if you want to be able to access it anywhere)
Now when you type IP you will see:
---------------------------
IP Address. . . . . . . . . . . . : x.x.x.x
Press any key to continue . . . ---------------------------
(information about the code: @echo. produces a blank line, @ipconfig | find "IP Address" causes the output of ipconfig to be piped to the find command, which looks for the line containing "IP Address", find then outputs your IP address, @pause causes the terminal to wait for user input before continuing. The @ before each command tells the terminal not to echo the command being typed.)