Binders for the Present & Future

I'm going to stop by Staples on the way home & get 3-ring binders to create binders for the present & for the future. How many do I need?

1. My work with the Planning Committee - I need tabs for my notes, agendas, minutes, e-mails, others?
2. I need to consolidate & somehow track my thoughts for the future presidency.
3. I need one for current work - notes from board meetings, notes on web site issues, treasurer's reports, etc.
4. 1 for my educational activities - power points, etc.

I also need some zippered envelopes to put small brochures & such in. This is getting expensive!