I have always like the way David Seah designs his forms and documents. They are highly functional and I really feel organised when using them.
The first form that I used from David's suite of documents is his Compact Calendar. Being compact, you could print it out on an A4 sheet of paper and mark it up for some quick planning.
However, it is relies heavily on the way Excel works. My home computer does not have Excel installed and I rather not install it. It just cost a bomb to use it. The main spreadsheet that I am using it Google Spreadsheet.
I have open sourced my attempt to implement the Compact Calender on Google. There are still some more automation required. I have only ported about 20% of the Compact Calendar functionality. If you want to improve it, pleas feel free to download copy. Remember to share your improvements.