How to prepare stock S3 for upgrade

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A

AC Question

Do you have any advice on what do to with my Galaxy S3 before upgrading from 4.1.2 to 4.4?
Already fully backed up and factory resetted.
Should I clear the cache, and should I try clearing whatever a Dalvik cache is, seeing as I'm going from stock Android to stock Android? Anything else I'm missing?
I just want to make it as fast as possible and don't plan on doing another factory reset after the upgrade. Experience level: never reset an Android cache before.

Thanks in advance :)