I was told that my 3-decimal places in my store looked "strange." The decimal places are now optional: 2 or 3.
I realize 3 may seem odd. But some things are very small, and have small prices, so being able to fine-tune the prices by tenths of a penny may be needed.
The decimal places can be changed under the SELL tab, here:
downfox.com/sell/SellSettings.asp