t is a bare-bones, completely minimalistic todo list for your command line. It's a port of tsion's do_stuff in C++ and should work pretty much anywhere.
t stores your todo list in a simple text file in your home directory, which makes it easy to combine it with Dropbox (cloud sync), grep (search) and other tools.
Check out this repository, run make. Put the resulting binary on your $PATH. Done.
[~]$ t That thing I need to do.
Added #1: That thing I need to do.
[~]$ t
1. That thing I need to do.
[~]$ t -e # edit the todo.txt in $EDITOR
[~]$ t Another thing.
Added #3: Another thing.
[~]$ t And another.
Added #4: And another.
[~]$ t ALL the things.
Added #5: ALL the things.
[~]$ t
1. That thing I need to do.
2. That thing I added from -e.
3. Another thing.
4. And another.
5. ALL the things.
[~]$ t 2
Erased #2: That thing I added from -e.
[~]$ t 4
Erased #4: And another.
[~]$ t
1. That thing I need to do.
3. Another thing.
5. ALL the things.
[~]$ t Edit my todo list.
Added #2: Edit my todo list.
[~]$ t
1. That thing I need to do.
2. Edit my todo list.
3. Another thing.
5. ALL the things.
[~]$ t -r
[~]$ t
1. That thing I need to do.
2. Edit my todo list.
3. Another thing.
4. ALL the things.
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
The software is provided "as is", without warranty of any kind, express or implied, including but not limited to the warranties of merchantability, fitness for a particular purpose and noninfringement. In no event shall the authors or copyright holders be liable for any claim, damages or other liability, whether in an action of contract, tort or otherwise, arising from, out of or in connection with the software or the use or other dealings in the software.