Trim off the excess bottom and top portions of any stems that stick out if you want the bundles to look even. If you are cutting the chives from a garden, trim them early in the morning after the dew has dried when they are the healthiest and full of flavor.
The bag prevents dust from gathering on the chives and keeps sunlight from bleaching out their green color.
Check the chives every few days to ensure that no mold has developed on them.