My Jetbrains IDE is bar none the biggest productivity boost for me. Even after VScode arrived (and got better, much better, over the years!), Jetbrains still has so many built-in features that I find it hard to code without, and I happily pay for my own subscription.Aside from that, I think the thing that's helped me the most is simply over-commenting, everywhere and all the time. I leave a quick note for other devs (and myself) for every helper func, even if it looks trivial to me. And for anyt...