Storage and transport. Usually charge out of the bag on top of the electric hob which should withstand the heat if one fails.
I store mine in a LiPo bag but I charge them on a desk, next to me while I get everything else ready. I mean, what's life without a bit of adventure?
Store them in lipo bags. Charge on a tile floor. The Batsafes are very appealing, have been sorely tempted in the past.
Got a lipo safe after ready about them here, store my lipo's in it 100% of the time but charge on my desk.