Here is my teacher work station:
My essentials include:
Laminator - possibly the most useful thing I've ever purchased. I remember purchasing my first one of these about 12 years ago. . . you had to use a film (almost like clear contact paper) and cranked the paper through the film - it took forever and rarely stuck! Anyway, my school provides laminating but the laminate is very thin and doesn't hold up well to my kiddos repeated use. This personal laminator came from Walmart and costs $28.00. The film can be expensive, but I purchase a pack of 200 lamination pieces for $13.00 on Amazon. It is much thicker than the laminate our school uses. I laminate almost every thing that comes into my classroom! I may have a slight addiction.
Velcro - I use velcro for EVERYTHING. I use it for icons, PECS, behavior charts, adapted books, hanging items on walls, etc. I swear, if it has space to put some velcro, I've put some velcro! I am lucky to have landed in a school system this year that provides this for me. I feel like I got a raise in this alone!!
Binding Machine - Another perfect tool. I purchased this from Office Max for about $30.00. I use it to bind adapted books, add a page at the end of a book to keep icons (stolen from Sasha over at the Autism Helper - http://theautismhelper.com/freebie-friday-bugging-you/) and create student workbooks.
Paper Cutter - I got a "needs improvement" in two subjects in elementary school - Handwriting and Using Scissors! This made my OCD brain freak out because all my icons were crooked! My paper cutter has been a life saver! It can cut up to 10 pages at a time and is safe to keep around kids. The blade is underneath and cannot cut a finger, even if you try! I have an X-Acto brand and I cannot find another ANYWHERE!!! Pictured above is a different brand, but I think it works great too.
Double Sided Tape - This is used to keep icons and papers in place when they are going through the laminator. This keeps them from sliding around and overlapping.
Packing Tape - I use this for almost everything. It can be laminate in a pinch. I use it to fix up icons that have been over-used.
Ok, that's my essentials. What am I missing? What do you just have to have in your room?