[stomachmonkey]

Along the lines of dynamic pricing.

I've run into this one several times.

You purchase an item that includes free same day shipping but the free same day does not apply above a certain quantity of the item.

Today it was TPMS's for one of my SUV's.

Needed 4. Once in checkout the free same day shipping is gone.

Switch quantity to 2 and it's back.

Order those 2.

Go back and place a duplicate order for another 2.

All 4 will show up today for free.

It's kinda stupid, if you can ship two packages same day for free why can't you ship one?

And i don't think it has anything to do with the size of a single package as I've had some pretty big stuff show up using same day.