I have baggies...a LOT of baggies.  The vast majority of Bricklink orders that I've received over the years were shipped with the pieces in baggies of various sizes.  I have a ton of the things in every size that they've ever been made in.  I just threw them in a box and said to myself, "Self, if you ever open a Bricklink store someday, you can use all these baggies that you've accumulated."

Well, I was right.  I've had a Bricklink store for 2½ years now, and I've never had to buy a single baggie.  However, I did do something with a baggie yesterday that I've never done before.  I got a BL order in the mail, unpacked it and then used a baggie from that same order to pack an order that I was mailing out that same day.  I've never had a turnaround time for just a couple of hours on a baggie before.

On a side note, I've also never had to buy a single box or piece of bubble wrap.  I work at Menard's, and we go through tons of that stuff.  Any used cardboard or packing material that would get thrown into the compactor is free game for employees to have.