You need to boil bottles
You don't. Hot soapy water, or a cycle in the dishwater is fine.
Now some of you may remember the "little outbreak" of cryptosporidium in 1993. I was pregnant with Alex and working in the Children's ER and have very fond memories of the events of those few weeks. Things like that tend to make all of us a little nervous about tap water and the safety of the city water supply. However, until we start hearing about another contamination, which hopefully will never occur, the city water is fine. If you aren't convinced that your city water is really safe, or you get well water, then boiling for 5 minutes should suffice.