In my first three months of vaping I went through ten attys for my ego e-cig. I did try some of the methods posted for cleaning them, but nothing worked. Is that a lot of atty's to use in three months? It seems like too many to me. It's no huge deal for me, I just returned them to the supplier and they were cheerfully replaced. Has any one else had this problem? I have heard of other people who say their attys last for months.