I have a son who is also 2 1/2 - will be 3 in April. I have separate containers for his separate toys, trains and tracks all in one, little animals each have their own (he has 3 backpacks full of animals from Target, one has 136 animals in it). I also have a plastic storage drawer to keep his art supplies in. Anything with small parts can only be played with at the table, and he has to clean up what he is using before he can move onto the next. Everything is in his reach, but I am consistant about making him clean up when he is done. He does it all completely on his own, and has been for about 6 months now. When he wants to move on to the next thing, I tell him he has to clean up first, he used to cry, but I was firm and didn't let him get anything else until he cleaned up, and now he just knows that is the way it is, and does it without a fight. His play-doh and markers are all within his reach, but he knows he has to take it to the table, and clean up when he is done. His markers have never left the table, and he has never colored on the walls. He puts them all back in the box and back into his drawer when he is done. I just taught him that he can play with whatever he wants, without needing help, but he has to follow the rules and clean it back up after. I can handle crying as long as he is not hurt, so if he cries because he doesn't want to clean up, I just let him until he realizes that all he is doing is making it longer until he can move on to the next toy. I don't even have to go stop him from getting the next one out, I just tell him no, and if he is crabby, he will sit on the chair and cry... but he won't even try to get the next thing out, he knows it would just be taken away. It takes a little time, and consitency, but you can teach your daugther to clean do the same thing. I have 4 different drawers for his toys, the ones with small parts all have their own area, so they stay separate. The ones that came in little zip-up plastic backpacks or bags, I am keeping them in those to keep it together, and all the bigger toys go in a big 18 gallon bucket (which is now overflowing after christmas... we are going through toys and figuring out what to do with everything.) Before he had toys with small parts, I just put everything into one big container... but when the small parts started, I realized that wouldn't work anymore. Good luck! Hopefully your daughter will not drive you too crazy with all the toys! Only 1 more year until next Christmas... and even more toys.