There are numerous tutorials available to help you master the Arduino. These will all teach you electronics along the way, and provide you the confidence to further your skills. This page on the Arduino website has a list of tutorials: Tutorials
. I would recommend a look at the Spooky Arduino by Todbot tutorials (bottom right hand corner of page).
Some of the things you will easily learn to do are:
Read a tilt sensor, use a joystick to control lights, detect sounds, play melodies, drive motors, interface to LCD displays, read a digital compass, read a gps device, etc.
Based on all my links, do you see how easy this is to acquire information? The Arduino site is loaded with information, and there is a forum to ask questions, learn what others are doing and get support: Forum
. It doesn't get any better than this!
Ok - if you have actually read all that I have submitted here you are now entitled to print this card below and carry it around. Better yet, get an Arduino and create! Don't forget, whatever you make - its all good, and its fun!