On the Exercise front...
Don't ride your bicycle to work, when you haven't ridden in several months and never that far in your life. First, I am not as graceful a rider as I was at 10..that was 50 years ago. Second, I didn't have an artificial knee 50 years ago. And last, it hurts a lot more when you fall now. However, I did at least 12 miles today. I think if I will hold it down to about a mile two or three times a week, I can get where I can actually ride with some dignity again.
Oh, yes, and when I fell, someone called the police and told them there was an old lady laying beside the road. He came by to check on me a couple of miles down the road, while I was pushing my bike up an incline.
It's ok to laugh, I did.
In the future, I may consider training wheels. I am also going to make shorter trips. I am a little sore from that little venture. However, overall, it now makes the four blocks to the grocery store seem very doable. I have a large market basket on the handle bars and two large baskets on the sides of the rear wheel. I could easily carry stuff, as long as I kept it pretty simple. I think my riding skills are not up to carrying eggs or breakable jars at this point in time....lol