Microwaves and washing machines

These useful developments in household technology can infuriate me. All I want to do is either wash some clothes or heat up a plate of food. I am confronted by all manner of options and times. All I need is a coupe if simple choices not a mathematical formula. I shrink clothes and burn food (not to mention blistering skin). This annoys me. What about the absurd number of shampoos that confronts me........aaaagggghhhhhnoyed