That's a really good idea about the colours on the boxes! luckily we will be moving to mums about 2 weeks before we need to leave this house so got plenty of time to get everything together. I am seriously considering paying out for a removals company to come and take everything rather than have the hassle of packing, getting a van and then lugging boxes and furniture around!
We had to put all our stuff into storage when we couldn't get our completion dates to match and lived in a hotel room for 3 weeks; all 4 of us, me, DH, DSs aged 6 and 3.
Remember to keep paperwork that you may need to access, ie is your car due a service etc we had minimal clothes as I was using friend's washing machines bless them all. We kept toys and shoes you may need like wellies etc
It is hard but just pack like you are going on holiday.
Start packing now, you will thank me later, start with kitchen stuff or cupboards that you won't be dipping into over the next few weeks. We labelled and 4 sides of the packing boxes, plus the top.
I am very anal organised to each room had a specific colour, so I taped a square of it to each side of the box.