Are you going to have your first customer meeting? While I would be surprised if someone sends in the newbie without backup, here are some tips I've recently shared with my students.
A mix of personal and web development (related) articles.
Tabs versus spaces; two spaces versus four; Windows versus Unix line endings: code editor settings differ per device and developer, which can be a hassle working in a team. There is an easy way to share base settings, and it's called EditorConfig.
Hashtags are popular means of tagging content on social media. Improve accessibility and readability of hashtags by capitalizing words by using camel case.
Ask people what makes them happy and you might yield interesting results.
Years ago, I built a bookmarklet to help me check heading structures on websites. This article links to the code on CodePen.
If-statement reversal is a technique that revolves around breaking from a function, loop, or script early by avoiding unnecessary code nesting.