Hello Mary, glad that Charlie has had his stem cell transplant, obviously all has gone well. I had mine in February this year, was out after three weeks. My wife cleaned the place, we had wipes in the loo and bathroom and odd places around the house. We have a very active border collie dog, my real regret was that I couldn't take him out for a few weeks. We didn't stop him wandering about but I didn't stroke him much.
We didn't get to hung up about disinfecting or sterilising everything.
My wife slept in the spare room for a few weeks simply because I was quite restless. We didn't have many visitors for a few weeks.
I was on NO medication , only antibiotics, I kept them going for ages, months.
Sounds like you're going to have 'fun' if you've sold the house! Stress!!!!!!
After maybe 6 weeks I started walking the dog, driving short distances and gradually getting back to normal.
I am on the myeloma XI trial but opted for having no maintenance drugs, so, no drugs, no treatments, next clinic3 months time.
Good luck with everything, don't get paranoid about it, Charlie will be fine.
Regards
Tony F