I received the paperbacks for the packages! I'll be able to sign them later tonight. I'm not sure whether I'll be able to mail them out tomorrow (Saturday) or if I'll have to wait until Monday; it depends on whether I can purchase all of the shipping materials before the post ships tomorrow.
Regardless, you can rest assured that they'll be on their way by Monday night at the latest, barring some kind of unforeseen disaster! I'll update again once they're in the mail. If people who receive the packages could let me know when they receive them, it'd certainly be a load off of my mind.
Here's hoping that I'll be able to mail them out tomorrow!