I've recently been doing some bash scripts using sed, awk, grep and wget. Most of these scripts grab pages from the intarweb and display the vital information in a nicely formatted way. Here are some of the scripts I've made:
1. Phonebook - Type in a name and a city, returns the address and phone number of every person with that name in that city.
2. Gas Prices - No input, returns the top 10 cheapest gas stations in my city and their locations.
3. Movie Times - No input, returns the showtimes for the movie theatres close to my home.
4. Movie Cast - Type in the name of a movie, returns the list of cast and characters for that movie. (Great for 6 degrees of Kevin Bacon)
***EDIT***
5. Directions - Type in begin and end location, returns text directions from MapQuest.
***EDIT***
Combine these with MIDPSSH and I've got a cheap and easy way to access important information from my cell phone.
My most recent bash script is also one of my favourites. Inspired by the podcatching script "bashpodder", my script goes to apple.com/trailers and downloads all the latest HD trailers to my media center.
Try scripting these for yourself. I sure learned a lot.
