Almost all airports are fine with you having gear, just dont check it, Carry it all on. Exept for liquid, be aware of liquid limits... and check large amounts. but 30 ml bottles will be ok.
I dont think there has been an airport Ive been in that I havent stealth vaped in. Usually, I prefer going to a quiet area of the airport and sitting down, and just in the middle between stealth and not.
For me, Though, I am really decent at stealth vaping.. so... there also hasnt been a long haul flight I have not vaped on XD, But I wouldnt recommend this, as it could lead to issues
Hotel rooms. I dont smoke. Therefore, I do not need to inform the hotels of my vape.
the ones that have found out, havent cared at all.
Might air it out a little bit, but honestly, If there is a little bit of a fruit smell, I am sure no one is going to really mind.