Don't Be a Dick: More Etiquette

This ties into my first garage sale etiquette discussion.  I feel these two topics are pretty closely related.

Let's say you're garage saling with a group and there's an item two or more people want. How do you determine who gets it?

The way my friends and I resolve this issue is that the first person to either verbally state that they want the item or to simply walk up to the item and grab it gets first dibs. Verbally stating that you want it gets precedence because it's pretty rude to grab something after someone has pointed it out saying they want it and to then defend your position by stating "you got it first."

It is perfectly acceptable to tell the person who claimed it that you will buy it if they don't to establish an order of precedence.  In fact, this is probably preferable to avoid any disputes.