Many students are familiar with trying to find free plag check services and running their papers and dissertation work through them. I was wondering if seasoned researchers also run their papers through plagiarism checkers, paid or free. Or do you trust that what you wrote would be plagiarism-free as you have written it honestly? I know many people also raise the concern that plag checkers store your files, while others say that it does not do any practical harm.
I am curious about your stance on this. Do you use plag checks? If yes, which ones?
Thoughts?