Some things takes much less time and stress once you know the right tool. Below, there is a community edited list of software for scientists.
General purpose text/code editors. It may be better to have a good editor for everything, than different ones for different languages, scripts, notes.
This is a tiny content strategy framework focused on goals, messages, and branding.
This is not a checklist and these are not templates. Use what you need and scrap the rest. Or rewrite what I wrote. Or add to it. These topics should help you get to the bottom of things with clients and people you work with.