1. Before you go, do some homework. Find out who's going to be at the fair and what the workshops will be. You'll want to plan your time. Don't rush through.
2. Set a budget. Then add some--there are LOTS of places you will want to spend your money.
3. The biggest tip: The energy at these fairs is off the hook! It can be disorienting and overwhelming. You're not crazy if you feel it. Many do. Make sure to take lots of breaks, even step outside. Bring snacks (especially chocolate!) and water to keep you grounded. Sip on water throughout the day.