Hey launching tomorrow. If you have any tips or pointers what to do before and on launch day pls lmk

Tomorrows my second PH launch and I want to actually do it right this time.

First launch I kind of just posted and hoped got some traffic, not much that stuck. This time I've got the page, tagline, and first comment ready, and a small audience to notify.

For those who've launched before: what's the highest-leverage thing to do the day before?

Not looking for upvotes here, genuinely trying to not fumble it twice. Appreciate any hard won lessons