I have several tricks up my sleeve lately, My ideas keep growing as I keep trying new things as well. I have 3 boys sharing a room, and I do know how frustrating it can be. Fortunately, though, I have an extra room in our basement that I have put the majority of the toys in so their rooms are the easy part, but toy room or not you still dont want it to over run you, as ours often does. My breaking point was one day when I went in to clean it up and sort toys out before Christmas and discovered every single game and puzzle was dumped and scattered throughout the room. So, that is when I wrote out a list of rules for the playroom and also posted the word NO around on certain things that they were now to ask before they could get those items out. Which are on games, puzzles, messier items and toys with lots of pieces. This way, they have to ask me to get it out and I can then know to make them put it away before getting something else out and if the room is total distruction, then I wont let them get those things out. One of the rules on my list is (of course) to clean up as they go, but the problem is when there is more than one child, in my house anyway, is that one will get it out and play then the others start to play with them, and then one will lose interest and start playing something else, and before long the others lose interest, and I cant keep up with what is actually being played with or not. So, I have started just going in during play and telling them to pick up what they are not playing with in which case they almost always tell me they are playing with everything so I say fine then clean up everything and if you still want to play with it when you are done you can get it back out and then I know you are playing with it all. Amazingly, it doesnt all come back out. I have tried a couple of things when they are cleaning up too. Before they start I will tell them they have to clean but they have a choice, they can clean without whining, fighting, etc or they can whine and fight and go to bed early, but either way they have to clean. Then ask them would your rather just clean and get it over with or would you like to go to bed early and still have to clean? During cleaning I often tell them they have until I count to 10. Then I spread it out very slowly, and often repeat numbers so that as long as they are continuously cleaning, they almost always finish before me. But if they keep playing and fighting during clean up I count up. This keeps putting them back on track and then if I make it to 10 before they are done, I grab the trash bag. Usually, one shake of the trash bag to open it up, will light a fire under them, but if not grab a toy, and keep going until the room is clean. I usually just put the toys in time out for a week or two, but how you handle that is up to you. Counting method is good when you do have other things to do as you can just yell out the number from the other room to snap them back on track, but you do need to keep going in to check on them. It amazes me sometimes how quickly they can clean when I count. You can still incorporate assigning tasks when doing this too. I have done that many times then you know who is not doing their part, and if it comes down to actually using the trash bag you can start with things that that child favors.