Use mesh laundry bags to organize toys. Kids can see what is inside before dumping out a huge bin. With sets organized together (trains, lego, animals) it's much easier to grab something and play!
this could work for legos too!
Actually, I'd like Lego portraits of everyone.
Custom toy brick wall letter. Links to cute etsy store.
Lego shelf to display creations. This would be awesome for each of the kids rooms to display their creations. Could double sided tape it for easier removal when they're older.
Lego storage tower. Could be customized for anything, really.
LEGO Quest - A Lego Building Challege for every week of the year!
Genius! Used coffee containers as storage for legos and the like. My worry would be that even after washing them, the toys would still smell like coffee. I suppose you could line them with something?