Great elevator pitches!
I've revised my taglines more than once since I started blogging a year and a half ago.
I didn't change Living Montessori Now.
It's still Living Montessori Now: Information and Inspiration for Parents and Teachers.
When I want to say something longer, I say:
Join me at Living Montessori Now for educational activities, Montessori techniques, homeschooling tips and experience, parenting information, and encouragement!
for Raising Figure Skaters, I used to have Raising Figure Skaters: Encouragement for Parents and Athletes and Motivation for Life. That bothered me because it's a bit clunky, and I really don't write just for families of athletes.
I just changed it to Raising Figure Skaters: Motivation for Life.
When I want to say something longer, I'll say something like:
Join me at Raising Figure Skaters for word-art freebies, inspirational quotes, encouragement for everyone, ways to make a difference, and posts on gratitude and raising kids with character ... motivation for life!
It really helps to keep going through this! 
