Also remember that when taxiing a tail dragger, hold full "up" elevator. This applies downward force on the tail wheel giving it traction. I just hold full "up" all of the time on the ground until my takeoff roll, then I slowly reduce elevator as needed through the roll out.
With the WW1 aircraft, we have to add "down" elevator with a blip of throttle to get them to turn. I just love the little quirks of the tailwheel. I do not even fly trikes anymore.