The majority of us here use the online sheets offered by
Some also use, myth-weavers.com
You have to register at each site, but then you can use their profile sections to store your sheets.
These sheets have some calculations built in also.
Click the Mantis link at the bottom of this post to see, Mantis' sheet.
I link my sheets as a 'signature' in my profile so it shows at the bottom of each post I make as Mantis, thus one click will bring it open in a new window for easy reference.