inbox or outbox?

I was cleaning my office this morning while I was waiting for my work to arrive. Some days it is in my inbox by 7 am other days it doesnt arrive till about 10.

The days it is late I get a chance to get caught up on my bill paying, filing, etc. My office is kind of like the hole in the house. Everything lands here. If you look around at any given moment it is full of officey type things but also, socks that were shed after school the day before from my hillbilly kids that hate to have their precious toes covered, homework assignments that I will be getting a call about later with whichever kid asking me to drive as fast as possible to bring that work in because it was due last week so it HAS to be there in the next 10 minutes, reorder forms for magazines that I never have time to read but "they are my favorites" to have a subscription to, and more miscellaneous crap that will probably never be needed.

This also happens to be the smallest room in the house. Thankfully I have a teenie tiny family heirloom desk (you know the kind they made when nobody ever grew to more than 5'1 and never weighed more than 95 pounds) that is very very small. My keyboard, monitor and a few papers basically maxes out the desktop area. Anyway, while I was filing a stack of papers I have been successfully ignoring for months someone quietly snuck (sneeked?) into my office and got comfy. My dilemma is I am not sure if this is filed as in box or out box. What do you think?