First time EPer... what do you do to build a freezer stash?

Hello ladies!

I have been EPing for almost two and a half months now, and my supply has been good, not a lot extra for the freezer, but it keeps up well with my very active, very hungry little girl.

What are your tips and tricks for building a freezer stash?

Do you pump more often?

Do you go by how many times a day you pump; how many minutes total in the day you pump; or how many minutes per pumping?

Do you eat or drink anything additionally to boost your supply?

Just looking for what others do for success!

TIA!