One of the cooler things we’ve seen here at Mobile World congress is this nifty Nokia X Burton snuggly case for your Lumia (truth be told, you can jam any phone in there).
First pillows for your phone and now a sleeping bag, you ask? What’s going on here? Well, this isn’t a gimmick as evidently putting your phone in the really, really cold (we’re talking below 0) is bad for the battery. Using this case when camping, snowboarding or ice fishing will prolong your battery up to 50% longer, which last we checked is a good idea.