While there's no substitute for a human editor, there are some wonderful tools which can not only help you save money and time with your editor by presenting them a cleaner manuscript from the start, but which can also help you identify patterns of error and weakness in your writing. Once you know those patterns, you can improve your writing as a whole.
The three tools above (the pictures are linked to their product pages) are the ones I use on a daily basis when writing, revising, and editing. Let's dive a bit deeper into what these are and how I use them.
Above is my most recent completed project--I feel like I can share the picture now that the two moms these were stitched for have received them (so this isn't a spoiler). But, like many of the stitching projects I signed on for prior to leaving teaching, this one took me way longer than I expected.