You know those annoying sticky price tags than ruin your fingernails when you try to scrape them off? Well, instead you can use a piece of scotch tape. Press the tape against the price tag and pull it off quickly. The white of the tag will still be on the item, but the printed price will come off with the tape.

A saleslady showed me this.

That is a really cool tip Sand. Thank you very much. I hate those silly tags.