I use books and audio mostly, because I’m working on my reading.
I also use internet. I bought a lifetime membership at Scott’s many years ago for less than $200. I just wish the site was less chaotic and easier to search.
The courses are cool, and there’s plenty of reading to practice. I just find the site is hard to navigate, confusing in lay out, and comes with it’s own intrusive alerts and messages.
Talkingbass is cool, I like that one too. Better layout, less chatty chat, and lessons usually come with the reading in one page. Just scroll down.
Computer content is tricky, because the computer is such a distraction. I’ve finally figured out how to turn off any alerts, beeps, dings, and most pop ups. With headphones, I can achieve almost total isolation.
I take studies much slower now. If it’s a technique study, there’s no point rushing to the end. Always working towards playing with less wasted motion and energy.
I also use my Beat Buddy for practice sessions. I have a switch set up that throws it to half time at the beginning of a measure. That keeps me honest on note duration. Then, back to tempo.
I also work on setup and finding new lighter string offerings. I don’t think people realize just how important set up is.
My main hub is a Line6 HD500x, kz in ears, the beat buddy and a Mac.
Now, if I could just quit working or retire, I’d have more hours to play.