I bought my second bottle of Gorilla glue about 6 months ago. I got rid of the first bottle because I had let the glue get solid and unmeltable. This time, I carefully read the directions to prevent it from getting solid and... it's solid! I don't use it very often but $5 or $6 for one use is ridiculous! Does anyone know how to keep this glue usable? It's great when you can use it... but!!