Hah great name, i'll improvise with something here. The other day I reduced almost all the wind noise with just a towel on top of the camera, not the most professional solution, but worked.
I believe the cheapest now for me would be a simple lapel microphone plugged into a voice recorder, later I sync it and voila. I accept opinions.
Yep, Lapel into voice recorder works great. I've even seen some lapels that plug into phones and record into your phone and sync.