Updated CrownedUp.com from Drupal 6 to Drupal 7

I upgraded CrownedUp.com from Drupal 6 to Drupal 7. Many of the modules we like to use have ripened in D7 so its time to start thinking about upgrading sites. This CrownedUp.com blog is ultra simple so I thought a good place to test pre client. I did realize that I actually had about a dozen extra modules enabled to start. It was a little bumpy on upgrade but worked fairly painlessly.

• To start w/ use the Upgrade process @ Drupal.org

What I did:

• I cleaned up the site; Users and Content
• I disabled and uninstalled modules that I didn't want or were not available in D7
• I disabled the modules that I planned to enable in D7
• I switched to the Garland theme
• I made a backup
• I duplicated the DB and created a D7 install
  • I have nothing in the file structure that I need
• I go to the site
  • I see empty pages
  • I run Drush update Database command
  • Pages load but theme is not applied
  • I login as Admin User 1
  • I run Update via the web interface
  • Theme is now applied
  • Config: Regional settings
  • Config: File system
  • Config: Appearance
  • Config: Site information
  • Alternately: one at a time enabled Modules and ran Update
  • Config: URL aliases
  • Administrator Role: Configuration » People » Account settings

• Note: I don't like the terminology changes, specifically: Theme to Appearance & Users to People
• Question: Are there leftover database tables left from modules that were disabled and not replaced?