For camping or late nights at the beach - Leave of Mountain dew in bottle (just don't drink it all), add a tiny bit of baking soda and 3 caps of peroxide. Put the lid on and shake - homemade glow stick (bottle) solution. Now I don't want to drink mt dew
Re-use plastic bottle tops to tightly seal food bags. Cut off wide-mouth plastic bottle top just at crest. save the cap. slip over bag opening. top toward the open end. Fold bag over bottle mouth. cap with re-used bottle top. easy to seal and pour!