Kid's clothes can take up a big chunk of the family budget. Figuring out ways to extend how long they can wear something really helps with how much money you have to spend on new items.
I have a daughter that grows up much faster than she fills out so everything still fits her through the chest and shoulders, but is way too short to keep wearing. Since my other daughter is eight years behind her, saving her nice things to pass down doesn't make a lot of sense. Instead, I have learned to sew on ruffles, lace, or strips of fabric to lengthen then. The example I just did is a dress, but strips of fabric or ruffles can also look very cute on the bottom of capris or cropped pants.
Here is a very cute summer dress Sarah has gotten too tall for. I decided to add 6 inches of yellow fabric to the bottom.
It turned out to be just adorable! It took about 10 minutes and only cost me about $4.00 - hooray! You don't have to be a master seamstress to do this project. It just takes a straight seam and a hem. If you haven't learned how to sew, ask a friend who does to teach you this simple approach. If you have a daughter, it will save lots of money over time.