Very simple, but the problem stems from here. People complain about leaking attys, but not here. I noticed the bottles i got my juice in leaked. They were childproof so they slip. I have the common sense to press down to screw on tightly, but I found they leaked. These were the 30ml bottles. I ordered mini 6ml bottles for travel purposes and tried those. They leaked. I bought those dram bottles with the dropper on it. It's just not that convenient, cause they'll spill if the caps off. All I want to know is what's the best bottle that you can find out there that doesn't leak. Yes they're cheap but I don't want to order anymore and do more testing, and find myself in a pile of useless bottles. I find the true waste of juice is from these damned bottles I'm using to dispense the eliquid. Any clue on this guys?