Never done any "field work"... I have talked about it a bunch and think that it would be great but just end up heading to a course and playing some casual rounds. I am going to start doing it at some point, mostly to try and get the gf to go with me. I think it would be easier to try and show her a few things there when she isn't worried about her score for her round.
It has been easier not thinking of doing field work since I haven't bought a new mold for my bag since last summer so I have learned my discs pretty well.
I do have my Discatcher sport in the backyard for some short approaches and putting.