if you need a scientific paper and it's paywalled, the first thing you can try to do is email one of the authors.
"As an author, I am thrilled when people want to read my papers. I am allowed to send copies to you upon request and I will happily do so if you just email me to ask."
holly witteman has an entire post about getting access to paywalled papers: http://holly.witteman.ca/index.php/2017/12/11/getting-access-to-paywalled-papers/
@Iuckyduck The best thing you can do as an author is publish open access or deposit your a copy of your paper in a repository -- either your institutional one or a disciplinary one (arXiv, SocArXiv, etc). This way there is a *permanent* freely available version. Less work answering emails + more equity! #openaccess
@Iuckyduck Sure, I think it's a great advice, that's why I boosted it, I just think it needs to be automated, see my toot: https://social.matej-lach.me/@MatejLach/100328706343955241
Octodon is a nice general purpose instance.