FIRST, forget the scale! Unless you’re training for a competition that requires your weight, there is no reason for it! Listen, I’m not saying that if you’re goal is weight-loss to forget about weight-loss. 

Sometimes life is crazy and you can't always make it to the gym. You shouldn't sacrifice getting in a good workout just because you are busy.

If the first thing to fatigue or prevent you from finishing a workout is your forearms, you've limited the rest of your body's gains to one muscle group. 

We all need a minimum level of flexibility and mobility to go through the day.  And most of us have at least just enough to meet the demands of the day.