After you open a beer there is no going back, you can’t just put it down and let it go to waste. Well now if you should need to rush out after you’ve already opened your beer, there is hope for that frosty bottle. Pick up some of these BeerSavers to slip over the top and it’ll keep it sealed. The stretchy caps are made out of food-safe silicone. You can also use one of these at crowded parties to make sure that you know which beer is yours. These come in a multi-colored pack of 6 for $7.99.