I wish I could remember where I read this, and it was just recently!
This article in a magazine claims that Sally Hansen Hard As Nails (nailpolish/nail strengthener) will work to remove both warts and skin tags. Just paint it on the skin tag or wart every day, and eventually after a couple of weeks, it will fall off. I've not tried this, but read it.
Disclaimer: You should probably run this past a doctor, and I'm no physician, but the article claims it works.
"Gratitude makes sense of our past, brings peace for today, and creates a vision for tomorrow." - Melody Beattie