As you continue to learn new techniques and ways to build solutions, if you’re not already, you might want to take side notes, screen shots, links, and essentially a reference library of what you’re working on.
There’s a good chance that those foundational areas are going to come in handy for you in the future, and you’ll want a quick reference to get you started, versus starting from scratch.
I’m pretty sure most seasoned professionals have this, and it saves them a ton of time.