Good luck on retiring Jim, I hope it works out for you! I retired last year, and it is great! I got real lazy, real quick!
But I am a bit more actve now, I do one situp a day. I sit up in bed around 8 AM, look at the alarm clock, realize I don't have to be anywhere or doing anything, then I lay back down!
I'm slowly getting back in shape, for what, I have no clue.