Something that has worked well for the groups I've organized, no claim it's the only way.
- Post the roster the day before, with roles marked, so nobody is guessing who's tanking or healing when invites go out.
- Ask everyone to be logged in and ready ten minutes before start, not just online but actually at the meeting point.
- Sort out loot rules before the first pull, not after the first drop. Decide who rolls, who passes, and how ties get broken.
- Have a backup plan for no-shows written down ahead of time. Know who you'd call up so the group isn't standing around while officers scramble.
- Assign one person to keep track of consumables or buffs needed, so that's not a last-minute scramble either.
- Do a quick check-in at the very start. Who's here, who's missing, and whether the plan needs adjusting on the spot.
None of this is complicated, but skipping even one step tends to be where the first hour disappears. Small groups can trim this down, bigger raids might need more structure on top.
What does your group do before pulling the first boss? Any steps you'd add or drop from this list?