[mixedmath]

This may be a little ridiculous, but I have a bookmarklet that I click on sometimes to render most LaTeX in the current window.

I use this because I'm a mathematician and I chat with some other mathematicians through Slack frequently, and this doesn't have good LaTeX support. But by clicking this, it loads MathJax from the MathJax CDN to render. We also use this on the chatrooms associated to Math.StackExchange and MathOverflow, which is why it's called ChatJax.

If this is something that interests you, you can find it on this semi-hidden page on my website: http://davidlowryduda.com/static/chatjax.html