Need your help - I'm a virgin (of sorts)

I had never thought about going to a consignment sale until my friend Tottums over at the Froggy & the Mouse got me all excited about it with a few of her recent posts. She scored a ton of great stuff for her boys for super cheap.

Well, I recently heard that one was coming to my town and {even better} they allow first time Moms with babies under a year old to shop early. So, I signed up and am all set to go! I can either go this evening or tomorrow morning, before the general public is allowed in around Noon.

Here's where I need help: I have NO IDEA what I am doing.

• Do I need a game plan? 
• Are there certain types of gear/toys/clothes that tend to go faster than others? 
• I'm assuming I need to bring cash? 
• Should I take Carina, or would it be easier to leave her at home?
• Do you think tonight or tomorrow would be better?
• Am I going to have to dodge and/or get mowed over by crazy ladies wielding giant strollers full of baby gear?

These photos (of a sale that Tottums went to) are giving me a panic attack

Maybe I'm just way overthinking this? Why am I nervous about it?

Issues? I haz them, clearly. Please share your tips with me.