How to Minimize App Store Approval Time

Question

What are some things and techniques I can do to minimize the time it takes for my apps/updates to be approved for the App Store? Do smaller updates generally take less time, and

Answer 1

I tried to use the expedited review for an app for a skistation, so it would be available before the winter season started and it was declined.

You need obviously a very good reason like a big security issue etc to get a expedited review.