5x$5 for a breakfast coffee&#x2F;bagel
5x$10-$15 for lunch
5x$3 for an afternoon coffee
3x$30 for dinners&#x2F;drinks out per week
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4x$200 per week in food out
4x$100 per week for food for the home
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$1200 per month for food.<p>5x$4-$15 for commuting during the week
2x$15 per weekend for transportation on the weekend
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$200 for communting per month<p>$3000 rent per month
$150 cell phone bill per month
$150 cable&#x2F;internet bill per month
$50 electric&#x2F;gas bill per month
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$3350+ per month in housing&#x2F;utilities<p>=<p>$4750 per month in living expenses...not including entertainment, car&#x2F;insurance, and a host of other things.  If you&#x27;re young you probably split the housing costs, so it comes down a little, but you&#x27;re probably spending at least $3k a month just to live and get to work around SF.