About pricing: when the first people come and ask for the item cheaper. Say no, not at this time, it's too early. (They are the scavengers mentioned earlier). Later in the day, when it slows down, start grouping stuff to make it a better deal, and to get rid of it. Never sell anything for less than your heart tells you to, you will regret it (i.e. three large hand-made, by me, bags, yes 3/$5)
If you have more than one of something, put out the crumbier/chipped one first. When it sells, pull out the second one. After all the pricing is done, and everything is one display, Have FUN!!
Good luck