I heard this tip that works decently sometimes.

If you notice it’s dirty, don’t conclude that you have to clean. Instead, because you’re noticing, you should conclude you want it to be clean. That obviously requires you to do some cleaning, but it’s something you want, not something you’re forced to do.

You can also just block element with uBlock to get rid of it, no need for an additional extension.

Just forget about rectangles altogether, circular video is where it’s at!

Isn’t rayon just cellulose? Maybe it’s just labeled differently.

Children here in the Netherlands use : as a divisor symbol. I don’t know whether the ÷ sign is particularly American, but it’s not universal.