I use a binder and protective sheets. The pattern and the templates all fit in one of the binder sheets. I can also store the tearsheets from magazines or free patterns that I have copied from other sources or printed off the Internet.
This is the pattern
[ATTACH=CONFIG]123152[/ATTACH]
....and the templates for the pattern
[ATTACH=CONFIG]123153[/ATTACH]
These are printed off from the Internet
[ATTACH=CONFIG]123154[/ATTACH]