I might be a bit ahead of myself, but I just sent off my petition for my Spouse on January 2nd as overnight with certified mail and return receipt. Should be there January 3rd by noon, and I'm expecting someone to sign for it on the 4th.
I wanted to send it off on December 30th, but missed the deadline to get it sent off before the 3 day weekend.
For the record, my hands wouldn't stop shaking while walking to the post office, and felt like I was going to get sick. But the lady that was helping me reassured me things would be fine as we tried to shove my 2 pounds of papers in the flat rate envelope. We barely got it in... and used a lot of tape... someone in Arizona is going to hate me.
I had used paper clips to hold the documents in place, and used plastic sheet protectors on all sections of the petition, so when the envelope gets opened, no papers should be ripped.