I gave nearly 100 talks this calendar year ... most are repeats where I'm invited to give a talk that people have seen elsewhere. There were about 25 different talks.

Some of the advice given in this post is universal, some is very, very specific and should be taken with a huge fistful of salt.

So assess it for yourself. Does it feel like it applies to you? Then adopt it.

Does it feel odd, alien, or simply wrong? Don't dismiss it immediately. Give it some attention, try to understand why the author is suggesting it, then decide whether or not to give it a go.