How often should I change my socks and underwear?
user
You should change your underwear and socks at least once a day, but not more than twice a day.
assistant
That sounds reasonable. How about for t-shirts? Should I wash them after every use, or every other use?
user
Your t-shirts don’t get dirty very often, so you can wash them every few days or once a week.
assistant
Does that apply to pants as well?
user
Yes, pants can be washed every few days.  You could also wash your pants more often if you wanted, but it would be a bit more work.
assistant
How often should I change my socks and underwear?
user
You should change your underwear and socks at least once a day, but not more than twice a day.
assistant
That sounds reasonable. How about for t-shirts? Should I wash them after every use, or every other use?
user
Your t-shirts don’t get dirty very often, so you can wash them every few days or once a week.
assistant
Does that apply to pants as well?
user
As long as you don’t sweat much, you should be able to wear your pants for more than a week without washing them.
assistant
How often should I change my socks and underwear?