For those of you who work in an office where you wear dress slacks/suits/shirts most days that require dry cleaning ... how frequently do you dry clean a pair of pants? Assume normal usage (I suppose this depends on how many pairs you rotate between) and not something that requires immediate cleaning (i.e. spilling food/drink on your pants). I'm looking for some clothes to purchase for work and most say dry clean only, some are pants, some sweaters... I'm just wondering how often would I need to be paying for these to be cleaned? Not trying to sound cheap or un-hygenic, I'm just curious.