I made http://pcbchecklist.com
For electronics there are a lot of small things which should be considered in each design. The must-haves are covered by standards and regulation, but there are many many other considerations which makes life easier or catches errors: checklists are an obvious choice.
So to make it easy for myself I bought http://pcbchecklist.com
It is mostly focused on being comprehensive, but every now and then I have some free time to expand on it.