My LBS had a great idea over the winter - they held a ladies night tea and tire changing clinic. We all brought a wheel in and took the tire on and off.
Another good place to learn things may be if you have adult ed in your community. We have a different bike shop that gives a two hour "basic" class. We didn't do anything hands on, but he showed us how to change a tire, how and where to lube parts, stuff like that. Very worthwhile, I thought.