AR directions on ground ~

Augmented reality directions could be, instead of floating over your
head, could be on the ground, on the pavement in front of you so that
it would direct you on where to go, and your glasses. Kind of like
they do with the sporting events where they have displays on distances
and all that on the green, you can do the same thing on the asphalt.

Shoulder pad sensor array ~

Wire up a shoulder pad with all the sensors and wireless antennas it
can hold then connect it via bluetooth or a wire to a wearable device.
Walking sensor array!

Electric field sensing glasses ~

Can you make glasses that sense human electrical fields or just
electrical fields in general and could whisper sounds in the earpiece
about things ahead of that the glasses appointed that way for someone
with low or no vision?

Can like the sonic clicking idea but sensing the electrical field
instead of the mass.

I like both, but it's just interesting to think about.