Which ChatGPT plugins have you incorporated into your everyday workflow and found it useful?

I use chatGTP on a daily basis. I don't overly use plugins but I use them a lot to help me with code. I mostly use it for regex though since writing them is annoying.

1.wolfram 2. Ask your pdf 3. scraper eg.this Ask your pdf plugin allows you to feed in pdf content, like whitepapers and it anayses everything and answers my questions. there is a similar plugin for youtube videos also , it allows you share the video URL with ChatGPt and then ask questions about the video i downloaded this ebook a month ago , it has a list if such plugins - https://hubs.ly/Q020FqjF0, it was free when i downloaded it.