I am at my wits end...Any suggestions welcome! Here is the story..I have 2 cats, both male, both neutered. They have been together for 5 years..no issues. The 5 year old male is the one who is spraying. His room of choice is a small room at the bottom of the stairs. I assume it is this room because the older cat used to ALWAYS come upstairs to sleep with me..then when we added the second cat that stopped..so I assume this cat is making it clear that no other cat can go upstairs. He has only started spraying in the past year I would say..No litter changes, no movement of boxes..They are always clean and fresh. No change in food, furniture, etc. I can't get him to stop. I have tried covering the area (against baseboard and wall) with cardboard..He sprays on that..I put a small folded up table against the wall, he sprayed that...I clean it as best I can with different products..Not bleach related, but the ones for cat spraying...I tried My Pet Peed, natures Miracle..you name it..He won't stop..I did try 1 plug in feliway...but that was only 1 plug in...and only in that room..Do I need them for ALL rooms? Is there something else I am missing? Has anyone tried medications? I hate to have to resort to that, but if that will stop it, then it may be my next step. I would never ever consider getting rid of the cat. I never yell or reprimand him either...It's just ruining the baseboard and wall!