Freezer. Should save it for you. Not forever though. Should only work for a few days. Plus your gonna need to get it between 94-99 degrees before you put it in the cup. Microwave it for 10 seconds at a time and use a thermometer to measure the temp and get it around 98 degrees.
***NO LONGER THEN 10 SECOND EACH TIME YOU PUT IT IN THE MICROWAVE. IT MAY RUIN IT!!!***
Then just rubberband a hand warmer to the side of whatever your keeping it in. Make sure you put NONE of your own in the sample, as it will contaminate it. Rendering it useless.
GL,HF (Means: Good luck, Have fun.) Older CS 1.6 acronymn we used to use before cal matches lol.
Good day sir,