Sometimes I cut the corners on the diagonal - that seems to help with fraying. I wash FQs with the others. Anything smaller goes in a lingerie bag. I have used some charms without washing. If hanging to dry is what you do, then, yes, it's fine. Just keep the colors separate until they are dry. Whatever detergent you normally use is okay. Aren't most or all phosphate free now? I use Shout Color Catchers with any new fabric.