I droped my package (I-485, I-130, I-131, I-864, I-785, G-325A ...) in the box one hour ago. Will post my progress along the way. By the way, did you guys put $70 biometric fee when you submitted your application. I did not do that first. After I dropped my package, then read the post in the wall and found I need pay $315 + $70 for I-485, so I wrote another check, put in a small envelope, dropped it to the same "drop box" (with notes in the front saying "put this and the big package together". I hope my package won't be returned.