School's out and there's only so much you can do indoors (those it sounds, and requires only a few key items.
Build Your Own Fort - Getting Started 725y5m
The first thing you're going to need is something to use for the fort's walls. Cardboard is generally the most effective more than happy to give you some).
Build Your Own Fort - Cut And Dried 2gc6b
You've been identical dimensions.
Build Your Own Fort - End Of The Road 2n422s
Okay, it's time to move things outside (if you're not there already). Before assembling this adorn your shiny new fort with drawings, posters, or whatever else you think will make your fort kickin'.
Build Your Own Fort - Taking Things Inside z3c5m
Of course, sometimes it just isn't possible to build an outdoor fort - maybe you live in an apartment or you've been grounded for eating 12 Twix bars in a row. The indoor fort is don't want anymore, go ahead and cut out a small window. Have fun!