A good rule of thumb if you know nothing about laundry is to wash everything in cold water with color-safe detergent (No bleach!) and hang dry all the clothes -- you can't shrink anything or mess up...
50lbs of laundry costs us $40 dollars for THEM to do it for us (they also provide soap free of charge)
50lbs of laundry used to cost us about $20 dollars for US to wash and dry it at the laundry mat...