Mark off the size of the cube on your floor including height and start filling! Try and use boxes the same size to make it easier to stack. I filled the insides of drawers, washing machine, tumbler and fridge with things too. I bought loads of vacuum pack bags for clothes, duvets, bedding etc. as you pack each box or bag number it with stickers and list what's inside, this can be easily transcribed on the day to the move cubes paperwork. I also sealed all my boxes, just industrial tape just to make sure the kids didn't come loose and also so I would know if they had been tampered with. Collect bubble wrap! Some people inserted silica gel sachets, I didn't as I forgot to get some but all of my stuff was fine anyhow, no mildew. Bikes were scrubbed to death. If you have any space fill it with toiletries, washing liquid And softener. Obviously you can get it here but for likes of lenor it's expensive.