It depends on where you are selling. Since you say this will be your first year you may want to create a business FB page to start creating traction. Same with a website - It will take people some time to find you. Have you done your homework in finding fairs/fall, Christmas shows near you?
Just curious, do you have a business plan? Where do you want to sell? Do you have all of your COGS worked out so you can anticipate affordable booth fees to make a profit? Do you have insurance? - Most sponsors of fairs have insurance minimums for their vendors.
Hopefully you are working on you fall collection now to ensure a nice cure.