An argument ensued between my wife and I on how often should sponge be used when you bath. She uses it each day but my own is once in three days. Though I use soap daily but sometimes without sponge. I believe if you use if too often you might develop a harsh skin. Besides, you hardly see any soap advert seeing the participant using sponge. So it means it's not too important.

So to my question, how often should a sponge be used when having your bath?

I FREQUENTLY USE SPONGE BUT NEVER ON MY FACE...IT ACT AS CATALYST THAT BOOST UP PIMPLES ON ONE'S FACE

I think the armpits should be scrubbed with sponge everyday even if you don't scrub your whole body. Daily scrubbing of the armpits is a sure way of preventing body odour.