Calculator with Paper Roll

M al in between a small recommendation: Although many of today throw Excel for small bills, but I think the "old fashioned" way in the case of my online banking is still the simplest. "ESBCalc" is freeware, small, 1 file, runs from USB-stick. Draw the calculations on a "paper" on which you can copy to the clipboard. Set point and comma as here used, has a number of settings. Get it here. A little tip: You can set the options that the arithmetic operators require no separate series, but are in the same row as the number.