I generally don't worry about this -- given the durability of clothing and the amount we all have, I figure that I could go almost two years without having to buy/ make new.

im 13 and still growing, so i may have to alter my clothes to make them fit, wich would be easy enough, just cut, then sew in another strip of cloth, and most sewing machines can be operated without electricity!

I just made a pair of flip-flops, it took me like 30 minutes with just a exacto knife and a pen and some thick leather...really easy...I bought the lace but obviously you could make your own