Carry a bottle of water with you
It may not be the most stylish fashion accessory, but a bottle of water sure can come in handy. Despite the fact that no one really knows how much water we need to drink, the reality is that our bodies are composed primarily of water. We need water to lubricate our joints and maintain our muscles. Even mild dehydration can greatly reduce physical performance and will predispose muscles to injury. By carrying a water bottle with you, you'll never go thirsty again.
accessory n.附件； （衣服的）配飾； 從犯； 婦女飾品
She was charged with being an accessory to the embezzlement of funds.
The company serves the national automotive aftermarket with a broad range of accessory and recreational-vehicle products.
Forster established the essentiality of minerals as accessory food factors required for maintaining life.