Not sure if that is a thing. From what I’ve been taught:

When you concentrate on something your brain will tend to use familiar thought patterns and not be creative.

When you relax and un-focus you get more creative.

So in a way you can’t try to deliberately come up with ideas. The way around it is to focus on something you want ideas about for a few hours, then get up and do something mindless, have a walk or a bath or something.

Obviously they will be hateful. This should not be enough to consider them guilty however.

Most car trips don’t warrant a stopping for food.

There is very little space in the engine compartment on modern cars.

The engine usually run around 90°C which is not enough to boil water. You could use the exhaust pipe but that is harder to reach.

3 year horizon: Not stock market. Unless you are okay with delaying the purchase for as long as it takes for the market to recover.

High interest rate account is what I’d look for.

Books don’t emit light in the visible spectrum so it does not make it easier on the eyes in low light conditions.

Historically it’s also cheaper because paper is some shade of white and it’s cheaper to not soak the page in ink.