For those of you who still use soap bars instead of liquid soap (it works out so much cheaper!), this tip is for you. Once your soap bar has become too small to hold, don’t throw it out but fuse it with a brand new one. To do this, simply wet both bars and push the small piece against the new one until they stick to each other (I usually do this when I am in the shower).
In the picture, you can actually see three different bars stuck to each other.