Several have ask where I got my things for our mini offices and for our portable learning center so I am going to post some sites to help you make your own.
This is where I got most of what I used for our mini offices and a few things on our portable learning center.
Here is a list of free worksheet sites
http://www.worksheetworks.com/ *greatest site*
Great site not necessarily worksheets though
http://happyhomeschool.familyclassroom.net/Archives.shtml (a unit study site)
Lapbook sites and unit studies
I may update this list later, but this is a good start. Hope you have a great homeschool day!