> For my family of 4, a 36-pack lasts >6 months (probably closer to a year, I haven't bothered to calculate it), One roll per week? That seems frugal. 180 pie

> For my family of 4, a 36-pack lasts >6 months (probably closer to a year, I haven't bothered to calculate it), One roll per week? That seems frugal. 180 pieces per roll x 36 rolls is 6480 pieces of toilet paper. (Guessing the 180, fairly standard-ish here in Australia). Divide that by days in half a year 6480 / 182 = 35 pieces per day divided by 4 family members in the house is 9 pieces of toilet paper each per day.