The packing has started

I somehow suspect that this will NOT all fit into my bag

Yesterday I started packing in earnest.  Until now, everything has been in a big pile and I put things in the pile as I remember them.  Up until yesterday, I haven't really gone through what I am taking  vs. what I am leaving home.  My main concern is making sure I have enough supplies with me but forcing myself to limit what I bring only to items I am positive I am going to need.  My husband might disagree but I am typically not an overpacker.  For this trip, however, I suspect I will be one.  I am not too worried about the clothing part, as I know I am going to have to do laundry a few times.  On big international trips I am always careful to put enough in my carry-on-luggage to keep me going for a few days if my main bag gets lost. Years ago I had an unfortunate luggage situation in Paris where the airline lost my checked bag for 4 days - and I was only there for 5 days with everything critical in my checked bag.  Lesson learned.  When I started going through everything this weekend I had to resist the urge to put it all in my carry on pile - it's clearly not going to fit!  After a few hours of running around the house finding things and inventorying what I had pulled out, I gave up for the day.  This is definitely going to be a multi-day one step at a time undertaking.