Originally Posted by Raiyn
Again Bottles last WAY longer than a year. Most of mine are over 5 years old at this point, and the ones I've retired have been used for everything from shims to seedling pots.
When I make my own powdered drink mixes I keep them in some of my older bottles, in the powdered state, not liquid.
And many plastic bottles can be taken down to your local recycling company rather than just tossing them out.