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Earlier today I needed some graph paper.

I have three different kinds ( spiral-bound, loose-leaf and notepad) at home, but I was at work. What to do? 

Search on the internets, of course, and this is what I found:

Incompetech.com has several varieties of graph paper and note-taking papers that you can customise for your own uses, as well as yearly and monthly calendars. “Print graph paper free from your computer. This site is perfect for science and math homework, craft projects and other graph paper needs. All graph paper files are optimized PDF documents requiring Adobe Reader for viewing.”
I really like how you can customize this Cornell Note-Taking Paper.

PDFpad.com also has graph paper, plus Calendars, Flags, Smith Chart paper, Musical Staff Paper, Storyboards and Sudoku. “PDF Pad is a comprehensive online destination where you can download and print the high quality documents you need for work, school and play, free of charge or registration hassles.”

Check out these killer resources.