I was once told (or maybe just overheard) that if you can't get your car rolling w/o using the gas pedal, then you don't know how to drive manual properly.
So I taught myself that "technique" (wasn't hard).
If I could use it in the traffic we have here, I probably would, but it's so stop and go (like 5mph to 40mph back to 5mph) that it's useless to idle through.