Whenever I come across a typo in something I've published or in a paper I'm reading I'll do a google scholar search with quotes and see how many other people have made it. E.g. "expensively studied", https://scholar.google.com/scholar?q=%22expensively+studied%...
That reminds me - when I was younger I had trouble remembering how to spell definitely vs defiantly and would often get it wrong on my papers. So, I spent some time trying to think of a situation where it would not matter. I came up with the following: "My dad said I can't go to the party to night, but I'm [definitely/defiantly] going anyway.".