The other day I was watching a customer modify his switch configuration and noticed that he was manually typing in every interface. I asked if he was familiar with the range parameter and he said responded no, I showed him how it could save time and typos.
He was so grateful and suggested I post that simple tip for everyone else who may not be aware.
In this video I cover this tip. I also showed this fellow that he should use notepad to edit his configuration and then simply paste the new config back into his telnet session.
Enjoy