Creating a "Templates" folder works extremely well, actually:
- Create a folder called "Templates".
- Right-click on the folder and deselect "Active".
- Create template projects. You don't need to put them on hold because the parent folder is already marked inactive.
- Copy your template into an active folder to use (option-dragging works well).
Btw, I've submitted feedback to Omni that inactive folders should be greyed out to avoid confusion. Same should probably go for sub-projects.
Dan