Here is my strategy for bookmarking:

I have my own custom frontpage.html as browser's homepage, where are links for websites I visit daily (e.g. HN). In that frontpage there is a tab, which shows links.txt content in iframe, where I throw links that I feel I should sometime revisit. I also have random.txt for random copypaste storage that shows in its own iframe tab.

If I encounter something I feel contains very important reading, I just take a full page screenshot of the webpage with Firefox's screenshot tool as png, so it won't linkrot/vanish. If the page is too long for png, I print it as PDF.