A picture does not exist of my first attempt at Jedi Cosplay -- it was at BayCon in San Jose, CA I think 1999 or 2000 -- and actually I was a presenter. We were doing an Aikido demonstration, and the guy running the show thought it would be fun to do it dressed as Jedi. We basically made tabards and cloaks the night before the Con and added parts from our Gi.
Here is a picture of a recreation of that style on May the 4th, 2005:
Fast forward a few years, and I marched in a parade in Walnut Creek, CA with the East Bay Star Wars Fan Club:
I took a more casual attitude at this year's parade:
And not really cosplay, but I did indeed left the house to skateboard, check the mail, and walk my dog today dressed thusly: