Does anyone know how long MJ really stays in your system after you quit? I was a long time smoker, more than 30 years, roughly 5-8x a day. I live in a small town in the middle of nowhere..the biggest store is Walmart..and every employer "tests". How long should I plan on before attempting to get a job? I have always been a professional and it would be so humiliating to test dirty, plus the whole town would hear about it.