[thenerdfiles]

I use http://todotxt.com/ because I very much dislike having to leave commandline. It's a bad code-switch to leave commandline for a TODO list.

    $ t ls/p # list or list by priority sort
    $ t add 'Something to do +Project @Tag' # add a new item with +Project or @Context categorization
    $ t [Num] p B # give priority 'B' to the TODO listing
    $ t rm [Num] # remove some item in the list

I use @Tag to track usernames of contributors of the project.