I am a fairly new alum, but I still wear my letters. I also have a bag sort of like the one on ebay with the stiched letters that I carry to work with me. My big got it for me at a different school's greek store, so I can't help you out on that. I would check the various website's that sell Greek stuff, you may find something that you like. I also have a windbreaker with embroidered letters that my big also got me (yes, I was a VERY spoiled little

). I still wear that all the time. I can't wait for it to get a little more springy here in PA so I can break it out for the spring-fall seasons. Now to wrap up my ramble and answer your question, I think it's definitely appropriate to wear letters. You just got initiated. That's the most exciting time to wear letters. You also definately need a set of stiched letters. You'll wear those forever. Have fun shopping for A Xi D stuff. Let us know what treasures you get.
TFJ!
Xi Love,
Mindy