My wife doesn’t use “Cook Time” on the microwave. She just hits the “Plus 30 sec” button 4 or 5 times then takes it out when she feels like it. When she takes it out she doesn’t press “Clear” so our microwave constantly says “0:13” or “1:45”. Next time she needs it she just hits start. I want to say this belongs in the efficiency thread, but she’s constantly under cooking or over cooking so she’s either taking out/putting in multiple times or is waiting for it to cool. She’s never developed the ability to look at something, touch it to see how cold it is, then be able to gauge how long to set a cook time.