Hey T, garage sale - yuck! I have been putting off mine for months. I heard it is easier to set up a few tables and mark 1 all things $1.00 and another $5.00 and so on. Dont know if its better that way - just a thought.
You could also take your little ones clothes and toys to a consignment shop.
As far as the decoder, I heard Jimbo has one - LOL! Take what she says with a grain of salt. You know the drill - light and positive and dont get dragged into any conversations that you dont want to.