I order mine from big cheese rodent factory in Texas. I like the way they package their rats. It's vaccum sealed to prevent freezer burn and the rats are on a styrofoam tray. I think the pinkies don't get vacuum sealed. I buy small rats, rat pups and weaned rats and they are vaccum sealed.
Use your resources and look around for reptile shows coming to your area. I went to my first last weekend and bought a 50 pack of F/T mice at a pretty good price for my 3 snakes. The show will be back in 2 months and I'll go back to buy more. And they'll be back 4 times next year. My feeding supply issues are solved for now.
Thesnakeguy has the right idea i save anywhere from 40-60 dollars an order from buyin at reptile shows the prices are usually the same but you dont pay shipping