Or pick up a set of (expensive) Smart Tweezers and check everything before soldering it on:
I've taken to not keeping loose parts around anymore, for this very reason. Unless it's in original packaging with a label and part number, in the trash it goes. It's just not worth keeping around loose parts (given how inexpensive they are) for the potential of wasting hours debugging.
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The MegaRAM shield: add 128 kilobytes of external RAM to your Arduino Mega/Mega2560