Like many other men in their twenties without a proper job I own exactly one dark gray suit for weddings, funerals and everything else that might require one.
Now it is almost a defining characteristic of a 'nice' suit that you can't wash it in the machine. In my case that isn't a big problem. After wearing it I have dry-cleaned and then it goes back in the closet for months if not years.
If I were to wear a suit regularly and and have it cleaned it after each time, then I would soon pay more for the dry-cleaner than for rent.
What does one do in this case? Is it acceptable to wear a suit more than once? Should you stay with washable suits for most purposes unless you can afford not to care?