This almost sounds like a behavioral problem. I would say that once you rule out anything medical, or anthing that could be stressing your cat (any changes, new dog?, something that has impacted the cat's environment) that it could be a behavioral problem. Our cat, Scooter, has the tendency to pee along the baseboards...and it's a lot...not just a few drops. We've tried everything...at first we thought it was a UTI, and the dr found some crystals in his urinary tract and gave us meds, but it didn't solve the problem. We keep the litter box very clean (some cats will go on the floor if the box isn't to their standards), we tried putting food bowls in places where he had peed, cuz cats don't like to eat where they potty. Pretty soon we had probably 10 bowls scattered around...he would just pick somewhere else to go. We finally tried putting him on medication, because the vet basically said there is nothing you can do with a behavioral problem except trying the valium or oviban. Still didn't work. So, now, our solution is we have to have him confined in his 2 story kitty playpen anytime we can't be around to watch him. It is a frustrating thing, but seems to be working for us. Luckily he is pretty sedentary, so he probably sleeps most of the day, and his playpen is right in front of our backyard sliding door, so he has something to watch. We let him out when we're home and can keep an eye on him. If he tries anything...back in the pen he goes!!!

Let us know what happens! Good luck!