We didn't spend a lot on the laminator either. We of course bought it from our classroom supply go to, Amazon. We find a lot of our supplies on Amazon. This is the one we bought and the sheets we buy to go with it.
The laminator is small, so when something needs to be laminated and we don't get to it during the day it can easily be taken home to use.
We used the machine to laminate the bingo boards we use in our classroom and various other classroom materials. Great for laminating worksheets to use with expo markers, so that they can be used over and over. Expo markers wipe right off, but if the expo is left on to long you will need a baby wipe or magic eraser to get it off.
Make sure you get a laminator for your classroom no matter how big or small your school is, I promise you will use it more than you think!