On 10 May 2014, at 23:09, Matt Neuburg wrote:

[…] When I open my project, the same two tabs are always open. Why?

From release notes:

• TextMate will now remember open tabs for “project folders”. This means that if you run mate «folder», open a few tabs and close the window, then if you later open the same folder, TextMate will restore the open tabs (and file browser state).

  You can see which folders TextMate has stored state for via File → Open Favorites… (⇧⌘O) — probably soon to be renamed “Open Project…”.

  The feature can be disabled using:

  defaults write com.macromates.TextMate.preview disableFolderStateRestore -bool YES
  

The state is stored in ~/Library/Application Support/TextMate/RecentProjects.db so you can delete this file to clear all state. You can also bring up the File → Open Favorites… dialog and press ⌘⌫ for each entry where you wish to clear the saved state (and remove that folder from the history).