The produce associate at my local supermarket told me that you do NOT need to buy an entire prepackaged bag of grapes. The bag is a suggested amount but because they are sold by the pound you may open them, pull out the best ones and then bag them yourself. I usually pull out a "vine", give it a good shake to lose the squishy ones and go on my way. Saves money and you get the grapes you want. Just the right amount.