Daily soaks have been great for my little guy. It's almost like he's potty trained. Everyday he pees and poops during his soak, rarely ever in his enclosure.
I cleaned and disinfected all my stuff but still was very nervous. So I just made a new enclosure with all new stuff. I did keep all of the old things. So maybe they can be used for a new little guy???
Sorry for your loss. My first Tortoise died very suddenly. With no signs of anything. I got him ready for his soak and that was it. R.I.P. After getting over the shock, I made him a nice grave on the side of my house and still go back and lay dandelions on it when they are in season.