The Project Browser is the hub for managing all your projects, as well as accessing your user's tools and profile.
From here you can browse the projects you have created as well as add and delete projects. There are two kinds of Project Browser view.
Thumbnail view, which is ideal for small numbers of projects:
And List view, which is ideal for managing larger numbers of projects, and multi-user accounts:
You can add your own columns (categories) and values to group and manage your projects as you choose. You can also sort by columns, and filter the view by tags.