If you share my fondness for yard sale Tupperware, you'll appreciate the Tupper Diva. Her site is chock full of vintage Tupperware catalogs and ephemera.
If you're just now finding Like Merchant Ships, here are more of my own vintage Tupperware pictures and posts. Enjoy!
The Tupperware archives
Tupperware as therapy
Using your vintage Tupperware
The Tupperware pantry