i got a flash drive carring case made by "case logic" from wallmart for my 510. it has 6 compartments that work great. right now i have.
compartment #1- 5 mil bottel- 1 batterie with atmisor atached
#2- 10 mil bottel-1 batterie with atmisor atached
#3-5 mil bottel-batterie with atmisor atached
#4-batterie with atmisor atached- 3 carts
#5-safty pins-e-cig cards to hand out
#6-4 carts
i can fit 5 bottles, 5 batterie with atmisor atached, and 4 carse if i wanted to
as for the
device im using i put pen clips on all my battries; so its hanging from my shirt