look up what you need - print physical pages - use pen | pencil - have a legal pad / notebook at hand - scribble down shit.

unfortunately now printing is expensive

Dot-matrix impact printers are still being sold and still have the lowest cost per printed page. The quality sucks, but for draft-only content (like LLM answers) that you're scribbling on it's not an issue. B/W laser printers are not too far behind though, just avoid brands like HP that gouge you on toner cartridges.