I have machines set up on each floor of my house so I can sew anytime, anywhere. I also have one packed and ready to go in case I need to sew somewhere else. I try to get in at least 10 hours a week but usually I do much more than that. If I do less I get jittery. I've been known to sew 40-60 hours in a week if I'm working on something that HAS to get done or if I'm doing something that I'm passionate about.