Pat, I've found that the simplest solution (nothing extra to carry) for the ailerons/elevator is the pilot's lap belt. So far, in almost nine years of flying and parking all over the country, the rudder has locked well by just rolling the tailwheel straight and letting the pin lock it. If I felt I needed more, I'd use a lock that slips into the balance slot at the top of the fin - but haven't run into needing more.
In general, I have found that places that generally have a lot of wind usually have it coming from the same direction, and they usually have tie downs that face it.