“vaping”).

For my SFH rental in California (San Francisco, a tenant friendly city), I also state: late charge of $25 and $20 per day (not to exceed $200 per month), no candles, no fragrance plug-ins, no illegal drug use, no smoking and no vaping of any products inside the house (I'm okay with weed use in the back yard or outside since marijuana is legal here), tenant mops up standing water, oil spills in driveway, etc.

I don't know about other landlords, but I do a quick Google of those who requested a viewing, and I ask them to fill out a quick questionairre before I even schedule a viewing, things like how many parking spaces do you need, do you intend to smoke or vape on the premises, your move in date etc...When I do Google their names sometimes I see criminal records listed. 

They reply back confirming this and then I text the following"When you read the ad, it states, No Smoking of any kind, No Vaping, No E-Cigarettes, No Weed and No Illegal Drugs.

If you're worried about what a potential renter may do....here's what I did when I advertised on GoSection 8......No Smokers of any kind,....period....no vaping, no marijuana, no e-cigarettes, NOTHING.No Animals or Pets, PERIOD (Of course if someone told me they had a Service Animal then I of course showed them the property because by law I had to).No Evictions, EVERNo Felonies, EVER1st Month's rent is due BEFORE move in.I could care less about their credit score because I know Sect. 8 is paying most of their rent anyway.I also let them know that there will be a background check that THEY pay for through SmartMoveAlso, in the ad it stated that (their portion of the) rent is collected electronically through E-RentPayment so if they don;t have a bank account then they need to have one before applying.Still got TONS of inquiries.

We had to add in along with no smoking cigarettes, no vaping or marijuana.

And do landlords include "no vaping" policies in the lease as well as no smoking policies?

You can still add no smoking or vaping inside the house. 

Some people would rather watch TV, vape, drive a fancy vehicle, wear $300 sneakers, and complain about how the man is keeping them down.

My roommate agreement specified things like: furnished or unfurnished, maximum occupancy- limiting number of overnight guests as it's bills paid roommate living, if it's co-ed or single sex, no smoking vaping e-cigs or substances on the property, cleaning chores/expectations, no underage drinking, pet rules, what utilities are included up to what limits and what utilities aren't included, etc.Require a security deposit from each roommate, even if small.Get a locking thermostat cover; set utility allowances so people won't take advantage of "all bills paid" rooms and have the daughter/master tenant or whoever is paying the utility bills be the person who sets the utilities.