I know you are on-target about doing just liquids one day a week for life. I have heard the nutrition experts talking about our starvation hormones and various other terminology and all leading to the fact that our bodies never really needed to be fueled as wonderfully as we do "now-a-days" on a regular basis.
I am so fortunate I have my little doggie companion to walk with every day, and you know he is the most enthusiastic little thing about "going for a walk" every walk is an adventure for him

I doubt I'd be as cosistent about walking if not for his company. It's funny what motivates us. Life certainly is grand!