I have an old flat foamed SA fly box that is adorned with stickers, writing, and a strip of duct tape to help hold the latch closed. It's an endearing part of my tying ensemble and I cringe each time it gets placed into an envelope with the US Postal Service. The value of this box is small in monetary comparison, yet the worth is immeasurable to me personally. The little grey box has travelled the world on countless excursions holding flies from my bench while returning filled with that much and more, yet I have never accompanied it along its travels. The fly box I speak of is my Swap Box.