for box storage I use a 30 gallon rubermaid container $9 at Walmart ,florist foam $3 at Walmart cut to size and put into a tupperware container $3 at Walmart drilled holes in the top and soaked with 50/50 solution $8 and put in a digital hygrometer $19 online,works fine for me,i have 8 boxes in it with plenty of room for more.BTW I open the lid every day or so to exchange the air.