I do one-off text transformations that not worth writing a script for. Eg. paste a bunch of unformatted data and format them in json, find patterns in huge text etc.
Translating between (natural) languages is another nice one. You can throw in json structures or fluent files or what have you and most of the time have it come out with pretty good translations that are formatted correctly.
I also used to take a chunk of html and replace all the class names and src urls with ...
I also had a list of 300 codes that kind of had semantic names and it was able to build me a table that mapped to a second list of about 20(code, descriptions).
Oooooh that's interesting. Can you tell me more about what kind of stuff you use it to find?