vaping does not stain the walls or ceiling. Hubby and I have been vaping in our home for a bit over 5 years now and all I have had to do is dust the walls occasionally. We don't blow massive clouds though and someone that does MIGHT have a bit of clear film that might need to be washed off but I don't know if even that would happen. It wasn't the nicotine that stained everything. It was the tar in the smoke that did it. JMHO
I have nothing but regular dirty water in the bucket now from washing walls. We have laminate throughout our house so I use a Rubbermaid Hygen mop to wash floors with and with it do walls in a fraction of the time. The mop pad has a rough feel to it does a great job. Its the front window that fogs up and seeing its cold outside its really now noticeable.