Bookmark directories (util)

I want so share a couple small btm files for bookmarking directories. They work like this:

First we set a bookmark with bm.btm
[c:\projects]bm proj
This sets a bookmark named proj that points to the current dir c:\projects

Then we can use cb.btm to change to that directory
[c:\stuff]cb proj
This sets the current dir to c:\projects

Home someone finds these useful