It is called the swedish fire log. pour and soak for a few days or weeks. then when you need it start it on fire and you have a fire log that last for hours. we did this in the snow when we had parties or people over to keep warm.
Try this Chair Workout from Pumps & Iron. Set a timer for 40 rounds of 30 seconds of work and 10 seconds of rest. You’ll go through the sequence 5 times. I LOVE LOVE CHAIR WORK OUTS! They help me when kiddos are sleeping