My sewing room also doubles as my vanity room. Actually, blowing my hair dry. my machines are always up. I have them covered when not in use. I usually have a couple projects or have just fiddled with the machines. Anyway, While doing something else I keep them covered. I use the vinyl tablecloths and they cover a large space. I save the moisture absorbing packets you find in medication and vitamin bottles and some shoe boxes. Keeping those nearby or right at the machines help.