I got my time doing traffic watch. When i went to Falcon school my sim partner was a traffic watch pilot and at a recent 135 indoc I met another prior traffic watch grunt from another region....what are the odds....? Most major cities have Traffic Watch for the radio station traffic reporters (who dont need cameras like the news helis) so we dogfight in 172s. I think the basic low level air to air frequency is 123.02. If your in a major city and have a transceiver dial it up and maybe talk to someone.
Banner tow is a good one but some of those guys want tons of tail wheel time.