Lydia ConwellThere are lots of tips for #writers about do this and don't do that, but one thing that is very important is to be aware of homophones.
There and Their are common ones but there are actually a lot more (depending on your accent) than you might first realise.
course/coarse, hanger/hangar, led/lead, etc.
It's so very easy to miss these, even if you know the correct spelling.
Not only that, there are also words of similar spelling that mean very different things. I posted a toot the other day about the words Torturous and Tortuous. But there are also things like Tentative and Attentive.
And stupid spellcheck won't spot any of these!
Stupid spellcheck.