Create an initial guest list.

Decide on the final number of guests.

Collect contact information of guests.

Design and order invitations.

Mail invitations at least 4-6 weeks in advance.

Set up an RSVP system.

Track RSVPs and follow up with non-respondents.

Decide on a venue (home, restaurant, event space, etc.).

Reserve the venue if necessary.

Visit the venue to plan the layout (seating, dance floor, etc.).

Check for necessary permits or restrictions.

Plan for weather accommodations (tent rentals, etc.).

Decide on catering or self-preparation of food.

Choose a menu and caterer if applicable.

Consider dietary restrictions of guests.

Order or make a cake/celebration dessert.

Select a variety of beverages (alcoholic and non-alcoholic).

Hire bartending services if needed.

Select a theme or color scheme.

Order or purchase decorations (flowers, balloons, etc.).

Plan table settings and centerpieces.

Organize lighting setups to match the theme.

Set up a photo backdrop or photo booth.

Select a music playlist or hire a DJ/band.

Plan speeches or toasts.

Organize games or activities for guests.

Coordinate a schedule for the evening's events.

Test all audio/visual equipment.

Arrange transportation for guests if necessary.

Organize parking logistics.

Set up guest accommodations if required.

Prepare a guest book or sign-in sheet.

Have emergency contacts and a first-aid kit ready.

Assign roles to family/friends for day-of support.

Confirm all bookings and deliveries.

Double-check guest RSVPs and seating arrangements.

Do a final run-through of the event schedule.

Prepare final payments for vendors.

Pack a bag with essentials for the day.