I’m about to mop the crap out of this apartment tomorrow as part of Spring Cleaning, but I’ve recently heard how popular mopping solutions like Pine-Sol leave potentially harmful residues on floors that may end up on pets’ paws and therefore in pets’ bodies. Bad!
What are some mopping solutions that are more pet-friendly than the harsh, bleachy chemicals out there? I’m willing to check out some hippie solution, just let me know.
Cheap distilled white vinegar, cut with an equal amount of water. It cleans and disinfects. It can be used on anything but marble.
If you don’t like the smell, add a couple of drops of orange or pine essential oil.
I mop with diluted Dr. Bronner’s Crazy-Ass Soap. Comes with entertaining reading, smells nice, and cleans your floors. Also you can use it as mouthwash. 
You can mop with ordinary household bleach. When it dries, the residue is a harmless sodium, but keep your pets out of the room until the floor is completely dry.
Unless your pet spends a lot of time licking its paws, I wouldn’t worry too much. Most dogs don’t lick their paws all that much unless there’s a problem like an allergy or injury. Cats are different, but I don’t think the residue they’re likely to pick up off of a dry floor is enough to do any harm, especially if they walk on carpet, too.
You might also check the label on the Pine-Sol or call the company and ask. Snopes doesn’t list Pine-Sol specifically, but there are references to supposedly harmful-to-pets effects from cleaning products: Swiffer WetJets, Febreeze, and Clorox bleach, all listed as “false.”
Usually once these things start making the rounds, every random product under the sun is specified. I don’t think I’d let my pet/child drink Pine-Sol no matter what the label says, but when you’re talking about something diluted to a capful or so in a gallon of water, and distributed across a floor before being allowed to dry/evaporate, the amount a pet could possibly ingest has got to be very small.
I’m not saying that there aren’t chemicals harmful in such microscopic quantities, or even that they can’t add up (think lead, for example). But I’d say your odds are really good that it’s safe, especially if you follow directions.