Another pair of cut-offs. If you have old jeans that still fit alright around the waist but you don't really wear, CUT OFF the bottom. You know, authentic style. Don't buy cut-offs. I made these longer cut-offs a few years ago from consignment store jeans and I still love 'em. A few weekends ago, my two favorite pairs of shorts were dirty, it was stinkin' hot and I had a party to go to. I took this pair of jeans, which had already undergone a transformation from boot cut to skinny and were now sitting sadly in the donation pile, and I hacked them up. This was a real haphazard job, surely careless enough to make a normal seamstress cringe. With nary a ruler in sight, I eyeballed the length and went at them with scissors. Yes, they were a little wonky when I wore them that first night but I fixed 'em up the next morning. Cut up your jeans. Breath a little life into those clothes at the bottom of your closet. Another favorite of mine is cutting up pants to make a skirt, a la this super crazy old post. Maybe I'll revise that tutorial soon so I don't have to link back to awful hand drawn sketches anymore.
(Cut-off shorts made Deanna's list of summer essentials! Get on it!)