Penalty for going over a month.Lease renewals same fee for filling vacancy (put the focus on tenant retention).Education program for tenants to teach them how to change batteries in thermostat, flip breakers, provide plungers, reset GFCIs.....

Make sure they have a toilet plunger and know how to use it.

-the second way to a woman's heart is a welcome gift package (about $10 in dollar tree supplies: toilet paper roll, cleaning paper roll, toilet plunger, toilet brush, dish dispenser, soap dispenser, shower liner) + 1 box/pack of water bottles-the third way to a woman's heart is a nice home/unit smell (apple + cinnamon/santal wood/ebony....)short version:-you need to find your niche!

I hear his sermon every day.But seriously, I would make sure that there are spare LED light bulbs, two toilet plungers (kitchen sink), an extra flapper for every toilet, a working vacuum cleaner, mouse traps, etc. 

I purchase a plunger and toilet brush. 4.

Use a plunger to push water out of the toilets .

No need to call it is called a plunger and they will re-emerge with ease! 

Get a handyman you can call for stuff like that, most of the time a clogged toilet doesn't need a licensed plumber, just a guy witha plunger should almost always be enough for the job.

I snaked it, used chemicals, plunger, everything.  

Turn off this knob to stop the water and unclog it with this plunger.