A variety of cases are available. There are larger business portfolios with room for an iPad as well as other paperwork, such as handouts and other materials given as school assignments. And of course there are streamlined cases which simply hold your Ipad. Some of the cases have a handy "quick release" function for easy opening and closing. Rather than carry a bulky laptop bag, why not carry an iPad portfolio which has room for your pen, pencil, and other necessary school supplies? You can choose a portfolio with a carry handle which makes it function very similarly to a briefcase.
There are lots of colors and styles to choose from, too. I could see these cases making popular holiday gifts!