While this may not be cool for those of you without a mac, those with that have not found out about quicksilver yet, use it! Get it -> here.
How to append to a file, quickly, through quicksilver.
Example(s)
For me, I browse a lot of sites and for the sake of not having thousands of bookmarks for these, I have been posting this in a text file. Time consuming and almost not worth. Not any more..
Steps:
1) Copy url
2) Invoke quicksilver (ctrl-space for me)
3) In the main window, press ‘.’ to type text. From here paste the url.
4) Tab to the next window, type ‘APP’ for append to file.
5) Tab to the next window and start typing the file name, for me, ‘websi’ will return the websites_of_interest.txt file that I copy everything to. Now press enter.
6) Continue surfing. Total time, ~10 seconds.
This can work for all types of files, you just have to define which program to use, but quicksilver uses the OS for that. The only caveat I found is that I am storing my files outside of the normal directory structure. You might have to add this path in the quicksilver search database.