We started our now 4 year old son on the Avent system when he was just born.  We've been in love with the entire system ever since.

Recently I started watching a friends baby girl.  She just turned one and is starting to learn to drink from a sippy cup.  I was able to use the same bottles I used with my 4 year old.  I just switched the nipple to the sippy cup attachment and am getting more use out of the same items. 

The bottle is a shape she is used to holding so she is able to grasp it easily.  The sippy spout is very soft so it doesn't hurt her new teeth and tender gums if she accidently...