保存拖放布局的最佳方法

I've seen this question a few times but they mostly have to do with individual objects and cookies. I am building an application with a toolbox drag and drop functionality (very much like you'd see in Visual Studio - i.e. dragging objects onto a form, giving them a name, etc...) Therefore the droppable area could have many objects including nested droppables. I've seen this question a few times but they mo