I have a block area for the first time this year and I'm finding it hard to manage at clean-up time. We teach the kids to clean up one project before going on to the next. But with blocks it gets confusing because as one kid leaves another steps in and wants to continue building on the same project. Soon all the blocks are out and it is a job to get them clean up. I have been starting clock clean up earlier and that helps some, but I wonder how the rest of you handle blocks.