How many relationships will be destroyed by these devices? Better get two, for the sake of household harmony.
Anyhow, I have the "Industriell Cover in Storm" and I like it a lot:
http://gifts.barnesandnoble.com/Indu...?cds2Pid=36174
It's simple, it's comfortable, it protects the nook, it doesn't attract attention, and it isn't girly (so us insecure guys won't feel like a dork carrying it around).
I'd advise
not getting the similar cover which has a magnetic clip. I bought a cover like that for my eink nook, and the magnet is a scraping hazard when the nook is placed on a table or in a bag with anything fragile. (After it scratched up my coffee table, I cut the strap off and am now happy with it.)