One of things I never did before MShopping was to take the itemized receipt before paying for the bill in a sit down restaurant. I always ask for receipts now, take the itemized receipt, and ask for names regardless of my shopping experience.
We've all made mistakes. Hopefully being part of this forum helps you avoid making more than you might have without reading. One of my earliest mistakes was thinking I knew where the FF location was (there are two within a mile of each other) and I shopped the wrong location. Silly me.
Sometimes, after a mistake, I've made the decision to drop the company. Maybe the directions are too long, poorly written and contain necessary information in a different font on page 6. Whatever the reason for the mistake, I find keeping the mantra "keep it moving" helps me not to dwell on mistakes and move forward to keep making a profit.
Good luck!
Evaluating and mailing packages since 1994