I only buy yardage so no small pieces (FQ's or such) to deal with. If I have small yardage pieces that are not red, I will toss those in with my regular laundry. If I have large yardage pieces I just make a load of those sorted roughly by colors (light/dark). Red I do tend to wash by itself. Never use color catchers. Normal detergent; warm water; permanent press setting. Then toss in the dryer. Yes, I have to trim the strings but, oh well. Then iron with a hot iron and starch.