What’s Your Best Upset Stomach Home Remedy?

I woke up this morning with some...let's say "digestive distress."  My best guess is that I must have eaten something that didn't agree with me over the weekend, though I can't imagine what.  Anyway, it's almost halfway through my work day, and my upset stomach hasn't gotten any better.

So I'm reaching out to you.  What's your best, "go-to" home remedy for an upset stomach? Before you answer, know that I've been sucking on peppermints for the last hour, and it hasn't done any good.

Please let me know how you combat an upset stomach in the comments.  I can't wait to see what you suggest, and hopefully find some relief!