Grab a pencil and piece of paper and write down your ideas, vision, and expectations before you engage a professional. A good question to get you thinking, what is going to be the most important aspect of this event for me? This could lead to a lot of answers and the foundation to help your event planner understand what's important to you.
After you have written down your ideas for your Social, Corporate, and or Wedding Event - decided on the number of attendees, a date/time for your event and a budget. Your budget should be reasonable for the type of event you would like to have and or host. Be sure to include hidden costs such as taxes, gratuities, licenses, stamps, and other "items" that can easily add up to thousands of dollars.
Below are a few budget categories to consider and or get you started. Note, depending on the type of Event you are planning, you may or may not include some of these categories: venue rental, food, transportation, accommodations, audio-visual equipment, printed materials, gifts, attire, photography, videograph, music, linen, marketing, florist, bakery, and DJ.
TIP: Your Event Planner can create a budget for you. Most Event Planners have a good idea of expenses by industry and or by way of vendors they network with.