If you use Excel 40 hours a week (and those are the weeks you are on vacation), welcome to the MrExcel channel. Home to 2,400 free Excel tutorials. Bill "MrExcel" Jelen is the author of 67 books about ...

In the front of each notebook, make a color-coded directory to remind yourself what each pen or highlighter hue represents, then stick to it. You can, of course, do this if you're typing your notes in ...