I also find it hardest to put down at the end of the day. It always seems like I have issues with vaping each day ( whether it be fluid in my mouth, scratchy throat, whatever) but by the end of the day, the vape is just so damn good. It happens each day without fail. Not sure if that is a good thing or not. But before bed, I sit at the computer with my PT and I have to force myself to shut down the computer, because I know that way I will stop and not vape all night