My momma told me... You better shop around!

Here's my process when shopping for OEM parts. I've bought a couple aftermarket items, but usually stick with OEM if the final price differential isn't significant.

• Check online Acura/Honda dealer
  • Usually, offering parts at a decent discount over retail.
  • I start with the Acura search engine on the dealer site.
    • I'll get a part number and then search the internet for that same part number.
      • That usually gets me a "fits xyz car" list. Noted.
      • Usually, mechanical parts are used on a Honda, somewhere.
    • I'll then search for the same part number (identical) under the Honda vehicle in the Honda/Acura site.
      • Surprise, surprise.. Same part number from same site is usually 10-15% less expensive, just because I selected an Odyssey instead of a TL.
• Local Acura parts department
  • Usually it's retail :/
• Local Honda parts department
  • Usually it's retail. :/ but less!
• Amazon or general web search.

I'll order what makes sense to be able to receive in my desired timeframe.

I haven't tried counter offering locally, or getting them to price match yet.

Anyone have any luck getting online prices locally?
Anyone have your own set of tips?

I don't mind spending a few more dollars for OEM, but why pay retail?!