Save your old T-shirts, there are a lot of ways you can recycle or reuse them, such as this T-shirt tote or Make DIY Slippers With Recycled T-shirts. In this way, you do not only get something unique and save money, but also keep a bit of the memory of your old stuff.
Another fun way to re-use them is to make an amazing T-shirt Rag quilt. This project is especially nice if you have saved a lot of shirts of all sorts of colors and patterns. Isn’t it a fabulous rag quilt? Reduce your impact on the environment and make something that is truly spectacular. Here is the tutorial.
And here is a video tutorial from Monica.