What is your end of cycle routine?

What is your end of cycle routine? Everyone is different. I am curious how many people do NOT boil their cups. I have recently stopped boiling my cup and started to soak it in a 1:1 Peroxide/ Water at the end of my cycle. I am kinda concerned about the cup getting damaged...but, my cup feels allot cleaner IMO. The cup is made of medical grade silicone and is a Nixit Cup. I contacted the company only to be told that they haven't tested the method yet and are not sure what to say to me. Personally, I don't see how it will damage my cup since the ph would be similar to that of my vagina and people have been duching with Peroxide for years. What could be the harm?? Any ideas or thoughts ladies?