This is the trusty little electronic calculator that I use everyday at work. It's kind of grubby looking, but I share my office with a bunch of guys, so the whole cash office is a bit on the shabby side, I guess, since I'm too busy with the bookkeeping to worry about cleaning!
The Sharp Compet has a tilt-adustable display, so that if the light is reflecting in the display window, I can adjust it with just a touch. There are a lot of other features to the Sharp Calculator, but I mostly use just the add, multiply, subtract, and total features in my work.
I love that it prints out my totals. That way, it is easy to double check and compare to the lists of numbers I am calculating. Sometimes I use the printed list to attach to items that will be stored in the safe so that they won't need to be counted over and over.
The Sharp Calculator has taken a lot of abuse over the years and still is dependable as ever. It's a great little tool that I'd be totally lost without!