I'm getting a friend a ecig for his birthday. Most likely I'm going to get him a auto Volt- he's been using mine and likes it. He needs things very simple and filling cartridges will be too confusing for him (not the brightest crayon in the box
) I think I'll probably get home a clearomizer so he knows when to refill it. My question is which do you think is the easiest to refill? Funny thing is he's already found his all day vape from my supply! Any advice is appreciated - the simpler the better.
Thanks!

Thanks!