Yeah... A few months ago I ran out of washing machine detergent and had a couple of really nice but grimy caps I wanted to wash before a trip. As the wife wasn't around I just went full auto belt fed bachelor, threw some powdered dish detergent in the washing machine, turned it on, and went back to packing.
Caps came out looking like the "weathered" looking pants and stuff kids buy that has holes, hanging threads when they're new. Now they're work caps...
Filed that little bit of experience away for the next time I need to seriously wash something - like bullets maybe...