Do You Need a USB Flash Drive & Ruler in One

I have not used a ruler in a long time (well since not long after I was at school years ago), but a USB flash drive I find very handy for having portable information on the move (be it videos, gadgets, word docs, photos etc).
So how do I feel about a USB drive that also doubles up as a ruler, well I guess it is better to have a ruler and USB flash drive than just the drive as I can remember a few times needing to message things.
We could think of many other better combinations for a USB flash drive but what do you guys and girls think about this little device, good or bad?
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