To avoid spamming with lots of threads I thought I'd ask one or two (pretty much yes or no answer) noob questions here. Apologies in advance if the answer should be blatantly obvious, but I say if you don't know, ask. Yeah? 1) Should I remove the battery from the camera when not in use? 2) As above for memory card. 3) Although my camera (D5100) is not weather sealed can I still use it in the rain and snow? 4) Can you affect a weather seal of your own by using Vaseline or similar without damaging the camera, if so how would you do that? Or would a cover be all that's required?