Share 'Where's my video "Spy Cam" when I need it?'

I wish I could have a "spy cam" somehow build-in to my reading glasses (which I wear most of the time anyway) so I could capture the audio and video of things my son does and says to replay for his grandparents and family that live so far away! I am pretty good with the camera - still photos aplenty at our house - ...seriously, tens of THOUSANDS of prints and digital pictures and he's not even ...