Hello,
I have this machine, I bought it 4 months ago and am still becoming familiar with its features. However, I absolutely Love it! I store my feet in an extra "Barbie Case" that I outfitted to accommodate the larger feet. I just purchased some additional feet during the March sale and I had extra feet for my 730 that will work with this machine.

Besides the Barbie cases, I have seen people use the little clear craft embroidery floss boxes and make labels for the individual boxes.

I have an 880 and I love it too. It's been very forgiving of my mistakes. I bought a few of plastic boxes with dividers that I got in the craft section at Wal-Mart. I can store all the gizmos and gadgets that I've bought. I have found the little boxes that come with the machines to be useless and the next time I'm at my dealer (2+ hours away) I will give them back...I'm sure somebody will appreciate a donation.