We didn't live in a mobile home but we had a small 2 bedroom house with no downstairs closets or storage areas, the house was a little over 900 sq ft of living space and we have 2 kids (boy/girl). We did alot of mulitipurpose furniture usage. Things like end tables with doors so you could store things under them like, craft items,videos,c.d.'s etc. Underneath the couch is a good place to store board games,puzzles or gift wrapping paper.Ottomans with liftable lids can be used in the living room to hide extra blankets and pillows. We had no area for a home office so we used a small corner of our china hutch to store a plastic tote filled with stamps, staplers,address labels, paper clips,etc. just pull it out and take it to the table with you when you need it. Shelves in children's rooms up high works good for keepsake items that you don't want them playing with but would like displayed.My son had this for his matchbox car collection. Add extra shelving to your closets if possible, underbed storage totes are great too. End tables in the bedrooms with old sheets drapped over them make for good hiding spaces underneath them for extra storage. Alot of put-together-furniture you can buy at places like Target and Walmart work good as extra storage too. We used a tall narrow book case tower in the bathroom for our towels and shampoos,etc.