I use RCBS case lube most of the time. Put a little bit on your fingers and rub it on the cases as you put it in to the press. Imperial Sizing Wax is great stuff too, I mainly use it when I'm forming 300 Blackout from 223 rounds. As for the inside of the neck I like to use the Imperial dry neck lube. Just put it on before you lube the outside of the case or you will have a good mess. Good luck you'll find what works best for you.