Well, I am happy to say that this is working out. I have learned that Shimano pedals have a tension adjustment, and that makes getting out of them much faster and easier. I went out today (took the day off) and followed Sue's advice- out for for 15 min then back. The riding on the Washington & Old Dominion Trail was easier than in my neighborhood (I live on the side of a largish hill) and I thoroughly enjoyed it. My bike is rather new; I was having trouble getting it to shift to the small chainring and a guy stopped and helped me out, which I really appreciated. I'll go out again in the morning, and see if I can add just a little more time and distance.

Thank you all so much for your encouragement and advice!

Wendy