i use those big plastic boxes with differnt coulred lids for different things , they are easy to stack in the wardrobes and can been seen in for easy identifying .

i dont think space bags are that great , i used a few when moving and by the next day they were leaking air ..

huge plastic tubs from bunnings are great for toys , i have 3 lined up against a wall in my lounge and at the end of the day i dont care how its packed as long as the toys are in there and not on the floor .

a spring clean sounds good , i did one of my rooms yesterday and i cant wait to get stuck in to the others !!