Well considering I still live at home with the folks and I'm 23.... I really dont have to supplement my income. I did also make 24k last yr in 8 months at my regional airline. I don't know how other airlines feel about flying outside of flying professionally, but at my airline you can fly for pleasure as long as it dosen't interfear with flying 121. I've spent 5 hard years and alot of hard earned $$$ to go blow it all away towing some glider or giving instruction. Although I have considered offering my services as an instructor.... there is too much risk involved, and my certs. put bread on the table. For those of you out there flying professionally and on the DL as well... be for warned. Espcially if you are on probation at your particiluar airline.

Just my .02