I simply must have calculators that allow you to enter a string of operations, press equal, and see the final answer. Like CASIO's fx-115MS. So when I'm on the comp, and I need to make a calculation, I actually end up busting out my CASIO to do the calculation.
I simply cannot use the single screen calculators!
For really complicated things, I load Mathematica, but it's a bit too powerful for most tasks.
Ah, it would be so great if I had a simple computer calculator that worked like this:
Nothing fancy. But quick computational power when you need it. I also think it's a pain typing numbers on a console. Maybe that's just me (have to practice typing on my number pad).
When you need to calculate something, how do you do it?