I don't sterilise anything this time. Though we're not using bottles at all, just dummies. I just wash them in hot soapy water maybe twice a day. With DD I sterilised until she was about 6mths, with the same thought as you, that she's licking the floor and stuff, so why sterilise?? I did it occaisionally, to make sure the bottles were clean, maybe every 2-3 days, but not daily. Both my kids are fine!