Mrs. Bird, I need your wisdom!

We will be ordering a stroller from Amazon in the near future. I want to get the best deal possible, especially since prices on Amazon fluctuate so much.

I always see people posting about specific deals going on for specific items on Amazon (like 25% off all boots for a day) but I don't know how to find these! Also, would joining Amazon Mom give me any sort of discount? Are there generic coupon codes for Amazon? Even 5-10% off would make a huge dent in a $500 item!

Any tips greatly appreciated!!!