Okay, this may sound really nerdy, but I genuinely enjoy creating how-to documents. I would argue it's even second nature to me. In my previous career as a Visual Merchandiser for a sporting goods retailer here in Canada, I created a guide that could train my replacement to do the job before an official company manual even existed. 

In my last full-time position at an advertising agency, I created a comprehensive training manual to onboard new staff and freelancers on all of our standard studio operating procedures and file-building best practices. A version of that manual is still being used with new contributors having taken it on since my departure.

 As a bonus, I also created a document that I could share with the accounts team that would help them understand some of our designer terms and tech specs. Being able to speak the same "language" when it comes to client work makes a huge difference. It empowered the accounts team to be able to speak knowledgeably about concepts and possible roadblocks on the creative team's behalf.

Did I mention I was never asked by my employers to do any of these? The need was there for the information to exist in an organized and easy-to-understand way. Sometimes, you just have to be the one willing to create the solution.