I found these in the grocery store.  At first I thought Avent was the way to go but my daughter (now almost 4) almost seemed to choke because the nipple was so long.  I went to regular bottles and nipples and she started having fussy spells after bottle feeding and wouldn't calm down until she either burped or farted.

I tried Playtex's angled bottles but couldn't figure out how to use them.

Then I found Gerber's Nuk Orthodontic Vented Nipples and I never looked back.  These nipples fit regular, cheap bottles.  This meant no special bottle feeding system like Drop-ins or Dr. Brown's.  The regular...