How to use a Mesh from one project in another? I've been confused about this one for quite some time now. If I were to create a project of a character by itself, and I created another project with just scenery, how do I put the character into the scenery? I've tried using import, but it won't let me put the full character into the project.
The Import is for other file formats, you're looking for Link Ctrl-Alt-O or Append Shift-F1 both are accessible from the file menu.

While Append creates an independent copy of your appended objects, Link just references them from the original file. 

If you char consist of more than a single object, you should group Ctrl-G them, this makes it easier to Append or Link.