Combining finances - best practices

My partner and I are combining finances after 5 years together.
We will be using YNAB to track money, and I will be the primary manager of it. We live together so have shared expenses, but we also have individual expenses we're taking care of now separately. We both have schooling debt to take care of. No issues anticipated by doing this - neither one of us is a shopper and are both committed.

I'd love to hear your best practices and any tips on how best to do this.