loft beds!

 http://www.amazon.com/Manhattan-Sizes-Solid-Wood-Loft/dp/B001LQCCOO/ref=lp_3733181_1_11?ie=UTF8&qid=1362682307&sr=1-11

 http://www.amazon.com/Space-Saver-Loft-Chests-Stairs/dp/B00377MG8W/ref=sr_1_67?s=furniture&ie=UTF8&qid=1362683963&sr=1-67

http://www.amazon.com/Lea-Dillon-Twin-Loft-Bed/dp/B002Y3IC5G/ref=sr_1_52?s=furniture&ie=UTF8&qid=1362683963&sr=1-52

houzz.com

more storage ideas!

litter box idea!

revolving cabinet door

http://www.familyhandyman.com/DIY-Projects/Home-Organization/Kitchen-Storage/how-to-build-under-cabinet-drawers--increase-kitchen-storage/Step-By-Step

http://www.shelterness.com/30-cool-ideas-for-storing-girls-things/

http://www.ohhellofriendblog.com/

http://www.tinyassapartment.com/

http://www.toystoreinc.com/servlet/the-18394/Toilet-Lid-Sink-Combo/Detail TOILET SINK COMBO TO SAVE WATER