Demonstration code for several things at the same time

Sorry about that Mr. Gammon, Sir! One quoted mistype that's never going to die, is it? IIRC, I did fix the original.

In the bills case it is desired to keep the billing cycle regular. Apps should fit needs. Been there, wrote the packages.

I want a status light to tell me more about the running of the software, not less. I've got one now that doesn't so much creep as leap whenever the GSM element runs. It's for someone else and free work so I'm not going to fix that library but wow does it need unblocking!

I thank you again for your great tutorials that put words to what I never put words to. My right-brain thinking ways don't do that and I end up with poor explanations for thoughts that are more like working pictures. What can I say? Literally! It's been great to be able to link people to your full, coherent explanations instead of my poor attempts.