Red meat, white flour and coffee are extremely acidic. Exercise with good aerobic activity to just the point of exhaustion creates an alkaline response because of the increased oxygenation. Pushing past this point will cause the body to release excess stored acidity. Emotional injury is also incurred when physical injury happens. Both produce acid-forming wastes.
Moonlight is very alkalizing and greatly benefits the thyroid and pituitary glands.
That's the excuse I hear most often for skipped strength training workouts. Create a competition, even if you and your buddy can't work out at the same time. Get together for a workout and record how much each of you can lift for various exercises. Then do it again in about a month or two to find out who improved the most. Wager something like a free dinner or video, or whatever else that will serve to motivate you.