Source: Behavioral Issues in the Use of Interactive Systems.
If you've guessed it, my vote goes for whoever invented the "Undo" button: cross-platform, multi-lingual, future-proof and as everlasting as human error.
I need to often be reminded of how to calculate a percentage. The context here is that I want a progress bar in one of my programs. Usually the winning formula is:
- (Given Amount / Total Amount) * 100
Just a note to say that I've added two more programs which I regularly use to my download section on this website. As always, these are free to download and include the source codes under the GNU/GPL License v3. If you have autohotkey installed, you can run the AHK files and modify these to suit your needs. The new programs also read off a configuration file which you can modify in any text editor in order to tweak the program to suit your needs.
Launcher v2.0 is crude replacement to the quick launch toolbar which arranges your icons in a grid that you define (the default is 7x7). Change the links and icons by running the program, right-clicking on the icon in the system tray and select "Edit Configuration...". Hopefully this will be of some use to you.
Unduplicater v1.1 is a basic tool to compare two folders and remove duplicates (ignoring file extensions). For more information on this one, see the DOWNLOAD section of this website.