After reading Going inbox-zero on your paper mail (on Signal vs Noise), I could not help thinking that David was creating a complex solution to a simple problem.
Using a scanner for your personal bills might be an overkill.
After all most of that information can be accessed online.
What about a little Simplicity?
To pay bills on time, I use the calendar on Backpack for a quick view. I just separate my bills between Personal and Business.
Banks, credit card companies and others give you the option of receiving e-mail reminders before the due date.
Reducing the number of companies you do business with is another option and obviously cutting down on junk mail.
Many services I chose especially for the business (Voip Phone, Blog Service, Web Hosting, 37 Signals to name a few) do not send paper invoices and are on an automatic monthly plan.
The same goes for Netflix.
Besides that for me a trip to the post office ranks close to a visit to the dentist and I try to keep these to a minimum.
My 41 cents of wisdom