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#1 This would be great for the ophthalmologists who work in the countryside, a portable eyesight checker.
#2 This woodworker-graphic designer uses a tape measure or ruler almost every day.
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#3 Don't ever worry about being in jail again. This datestamp will assure you the girl isn't underage.
#4 Subway map tattoo
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#5 Erik Burke got himself a very useful tattoo to write down his to-do lists.
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#6 Medical alert tattoo.
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#7 Although there are only temporary, these tattoos can be very handy. Especially for those crowded days at the mall.
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#8 Avoid those moments of boredom with a “connect the dots” tattoo.
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#9 A very good reminder, a Pi tattoo up to 80 digits.
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#10 This tattoo also works as a ruler but with a much vainer purpose.
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#11 If you can't afford a pair of glasses or always forget to use yours, this could be your solution. MatthewG15 decided to get a pair of glasses tattooed to his face.
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#12 Get an instant moustache anytime you want to by tattooing one in your finger.
