Very useful little tool Puntuado con 4 de 5 estrellas

A very useful tool that can save you a lot of time if you often copy and paste pieces of text into a collection. E.g., if you want to archive everything you post to forums in a single file.
Here's some proposals for future versions:
- append text on top of a file instead of at the bottom, to put items in reverse chronological order (i.e., most recent first);
- add a hotkey so you can use it while keeping your hands on the keyboard (should be customizable);
- give this a more informative name, such as "SendToFile" (which I guess is what "stf" stands for).