I think by now you all know that I love thrift shopping. Especially for kids clothes. You can get the same jeans at the Salvation Army that you do at Old Navy or the Children's Place. Sometimes better.
The one drawback is that when I find a pair that look really good I sometimes overlook the fact that they are one size too big. I take them home and as Lily is running around the house I see that they are slowing falling around her knees. Not good.
Julie-K has given me a solution. Check out her adjustable elastic kids pants tutorial.
And the best part is that when your child grows you can simply remove the elastic. You can try this with almost any pair of pants. I've looked at it and it seems super easy! Try it!