I used bleach when I first started. Never got an infection, but if I wasn't extremely thorough when rinsing I could sure taste it.
As far as a substitute for Star-san or Iodophor, can't help you there. And as has been said above, sanitizing is something I won't skimp. If I run out of Star-San, I put off whatever I needed to do until I'm able to get more.
I've seen homemade recipes for Oxyclean or PBW, but haven't tried them.
Souring: '14 Brett C Old Ale, '15 Lambic, '14 Lambic, '14 Flemish Red, '15 Flemish Pale, '15 Oud Bruin, '15 Session Kriek
Cellar: '10 Brett B Tripel, '11 Lambic, '13 Brett C English Barleywine, '13 Quadrupel, '13 Sour Stout, '14 Brett C Bitter, '14 Spontaneously Fermented Cider, '15 Wee Heavy, '15 100% Brett B Red, '15 100% Brett L Kriek, '15 Bière de Garde