Rivertweed,
I am pleased someone can identify with my mid life crisis!
I have a modern day bullworker a set of resistance bands, they are the easiest thing ever and as I am going to be travelling and unable to go to my gym for a while they are coming with me. A combination of them, walking, swimming and a little beach running will do it for me just now.
I wish you well in your efforts and with your progress
xx
Mo