IT pros - how do you use worksheets

If you've ever used any product documentation that included worksheets, checklists, or other job aids, I'd appreciate your input on two questions. How do you actually use those job aids? And how would you like to be able to use them?

For example...

1.
I just read them online 2.
I print them out and fill them in/check things off 3.
I copy and paste them into a file so I can fill out soft-copy 4.
Other...?

I'm gathering information on your preferences because I plan on doing several job aids in the documentation for the next version of DPM and I want to know what formats would be most useful. Please send your answers to Dpmfdbk AT microsoft.com, or comment here.

Thanks in advance!