I don't know, Cake. If I get up off the couch and walk or jog over to the computer do I get to log that in as pt?
All joking aside though, this might be of benefit to those who havn't a clue about pt or phys ed. Of course a log book can work the same, with a pencil or pen.
Seems to me what we need to get people motivated is less devices, less paid memberships, less contraptions, and inventions designed to do more for us. The planet earth to push against while doing pushups, and to support us while doing flutter kicks, or briefly support us during situps, some running shoes (after reading the plantar thread, these may not even be needed)...
Some water to swim in, and maybe a ruck filled with sand (in the Navy I've used my sea bag before).
Then a proper and nutritious diet (no protien powders needed), and plenty of time to put into it over several years / a lifetime of fitness.
Access to a pull up bar or sturdy tree branch, and other calesthenics as needed.
Just my opinion though.
EDIT: for clarification, I didn't mean swimming with a ruck filled with sand, especially in deep water.