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  2. Hobby Lobby is reportedly canceling its 40% off coupon ... - AOL

    www.aol.com/news/hobby-lobby-reportedly...

    The company's decision will allow it to discount thousands of its items on a daily basis instead of using a one-time coupon. Hobby Lobby is reportedly canceling its 40% off coupon by the end of ...

  3. UV marker - Wikipedia

    en.wikipedia.org/wiki/UV_Marker

    UV marker with UV led lamp. An ultraviolet (UV) marker is a pen whose marks are fluorescent but transparent; the marks can be seen only under an ultraviolet light.They are commonly used in security situations to identify belongings or to prevent the reproduction of unauthorized banknotes.

  4. Invisible ink - Wikipedia

    en.wikipedia.org/wiki/Invisible_ink

    Invisible ink can be applied to a writing surface with a specialty purpose stylus, stamp, fountain pen, toothpick, calligraphy pen, Cotton swab, or even a finger dipped in the liquid. Once dry, the written surface looks as if it were blank, with a similar texture and reflectivity as the surrounding surface.

  5. Decoder pen - Wikipedia

    en.wikipedia.org/wiki/Decoder_pen

    The decoder pen, yes-no pen, yes-know pen or magic pen book is a combination of decoder pen or marker specially designed to reveal invisible ink-encoded pictures or writing, [1] in the form of answers to questions or hidden parts of pictures, with specially created children's books with hidden words and pictures. They were most popular in the ...

  6. InvisiClues - Wikipedia

    en.wikipedia.org/wiki/InvisiClues

    The clues were not written in invisible ink, which made it easy to accidentally get answers to puzzles. Some of the hints were missing; There were many errors, such as misspellings, mis-capitalizations, formatting issues, and punctuation errors. The clues were not included with The Lost Treasures of Infocom II. However, there was a pay-per ...

  7. When and when not to tip, advice from 'Mrs. Dow Jones' - AOL

    www.aol.com/finance/not-tip-advice-mrs-dow...

    Here's what to do when an iPad greets you at your local eatery, coffee shop, or salon, incentivizing you to select one of three options for a tip.