I use something similar to the blog postings on this site. Each page has the company name, their type of business, the period of their use of commercial overprints, the period the company was in operation, a brief description of the company, and a representation of the overprint.
I keep overprints on receipts on separate pages from overprints on loose stamps mainly because the receipt generally fills the page.
I create the pages using Microsoft Publisher and mount the receipts using Lighthouse self-adhesive photo corners.
By Michael Behm