Hi Janet,
I'm not sure if this will help but my primary two tools are a Palm Pilot, and Time Matters.
Time Matters is a desktop CRM software database that allows me to track anything related to clients and projects. I can easily file and find documents, email messages, agreements and contracts, milestones, notes, various stages of drafts, client edits, feedback, etc. etc.
It's difficult to explain the sheer power and flexibility in a brief message, but you'll find videos, screenshots, articles, etc. at their website:
http://www.timematters.com
Some might consider it overkill for a one person business, but I consider having all of this information on demand to be invaluable.
- Kathy