I am almost done "reading" chapter 2 from Knuth's TAOCP. I've been approaching it the lazy way: skip the problem sets, don't worry too much about understanding every little thing.
The un-lazy thing I've been doing has been taking (handwritten) notes while I read. I intentionally write very slowly. A consequence of this is that I end up reading very slowly.
At only 15-45 minutes a day, this process has taken several months (started early May).
Not even attempting the problem sets saves time at the cost of not building up any intuition around the concepts. It's something I'm hoping to circle back on. But, I'd like to think my approach is still better than nothing. At the very least, I've enjoyed being immersed in Knuth's prose.
In 45min, I can usually write 1-1.5 pages of notes. 2 pages if I'm lucky. A page seems to cover 1-3 pages of reading.
I've been teaching myself to read and write using a floor setup. This contributes to some of the slowness. I'm essentially writing into a notebook against an easel. Depending on the setup, I'm either kneeling with a meditation bench, or sitting in half-lotus with a zafu/zabuton. It's been an adjustment from the usually ways I've handwritten stuff up to this point.