Ahh, garage sales. First there are the negotiations with oneself. (Do I really need to keep this perfectly good breadmaker that I never use?) Then, possibly a negotiation with a spouse. (We can't sell that!) Once those issues are resolved, then comes the negotiation with the buyers. Since I didn't take the time to price anything, the negotiation process is basically intuitive. Trying to get your money out of an garage sale item, or have it be even relative to what you paid for it, will make you nuts, so I just tried to float the best I could.
In between customers, I sat and tangled this piece. It may or may not be hard to see all the negotiations I had to make while creating it. But there were many. Appropriately so! There is no wrong or right in Zentangle®, just an attentive and intuitive negotiation of line and space.
It was a very relaxing garage sale!