Hey! They took my recommendation to have a forum for cleaning!
As a landlord, I have to know a little bit about a lot of different things to do my job, but by far the one thing I do the most is cleaning. If I'm not cleaning up after tenants when they vacate, I'm vaccuuming hallways, cleaning stairs, wiping down smoke barrier doors, etc. Probably about 60 percent of what I do is cleaning.
So, I'm probably gonna spend some time in here.
The only thing that I can see that might be a problem is that because I do so much cleaning, I own professional cleaning equipment that the average homeowner won't have. For example, I have a 17 inch floor machine for my vinyl composition tile floors, I have a carpet extractor that's typical of what most pro's would use. And, I have a Taski Vertica system for cleaning walls and ceilings, which is something most people won't have. So, I'm gonna have to keep that in mind when posting answers.
However, I certainly have enough experience cleaning, and I understand that most people think there's not much to it, but I expect people who frequent this forum will soon start to think differently. We'll see.
Most people buy their cleaning supplies from a grocery store or home center. Don't do that if you have a cleaning problem you need to solve. Open your yellow pages phone book and turn to "Janitorial Equipment & Supplies", and phone around to try and find a family owned business there. Since successful cleaning is largely knowing what cleaner to use and how to use it, by purchasing your cleaning supplies at a janitorial supply store, not only do you get effective cleaning products (that just don't have the purfumes and dyes in them to make them look and smell sexy), you also get all the knowledge and experience of someone who's spent a career in the cleaning business tossed in free of charge. THAT is worth a lot because it's simply not possible to sell cleaning products to professionals for years without learning a lot about cleaning. If you buy your cleaning products from a grocery store, the only tech support you can count on is the customer service lady at the end of a 1-800 phone number, and she was probably selling insurance last month.