Good idea to extend sleeves that are too short. Transform socks into wrist warmers. This is a simple, but very clever idea. If you can crochet and or knit, then there are lots of pretty edgings that you could use on these.
Miss Sews-it-all: How To Make T-shirt Wipe Ups :: why throw out old tshirts? cut them up to use as wipe-up rags instead of paper towels : not just cut them and use as rags, sew up the sides, make them classy.