stop strerilizing

I think should not stop sterilizing bottle but after one year of Ur LO u could use the bottle again for the short time periods by washing them immediately after feeding done by water u drink.(filtered water or hot water). I know it's difficult to sterilizing bottle all the time .. specially when ur traveling.. just steriliz bottle @ night for long periods used and in morning. Keep two or more bottles so u could steriliz at once and can be used for a whole day It's save the time