Favorite parts store/source

Autozone or Internet...I will admit I usually look-up my parts first on Autozones website and go in with the part numbers, never seem to have much success finding parts on NAPA & Adv. websites. Local AutoZone takes the time to source parts out and call other stores to get the part shipped to them within a day or two, where as the local Advanced Auto & NAPA give me the "'ol deer in the headlights look" when I ask for parts for my '66 Cuda....