While I was preparing dinner tonight, I was about to pop in a bowl of last night’s leftovers in the microwave when I heard that click that signaled me that the rice is done. It usually takes an additional 5 minutes before the rice is really done (at least for me, I like it slightly dry and the grains not mushy). So I thought, why not let it cook but use that heat to warm up my leftovers as well? So I placed the bowl in the rice cooker, on top of the rice (making sure the bottom is clean first), and put the lid back on.
Five minutes later, the food is nice and hot throughout and my rice is perfectly done! And no tongue burns from the microwave!