But to the point. I very rarely use the LCD in my classroom other than for when I am giving our opening quiz. But the other day the my LCD lightbulb went kaput. So I had to improvise by taking the url from the Google Drive document into a Tinyurl which I also personalized. For example I am doing the fifth and sixth units in my for AP microeconomics called tinyurl.com/apmicro56. So I wrote the url on the board and didn't worry that we didn't have a LCD. It also is nice when kids want to redo a quiz, I just give them the url and we are all set.
In addition there is bitly.com that allows you to keep a repository or your shortenings as well as Google's shortening.