Burning sage can help to cleanse negative energy from your environment/items  as well as your aura. It can also promote clarity, wisdom, and spiritual healing. Before burning sage, be sure to open the windows to allow the negative energy to exit the room. Smudging with a feather can also aid in energy clearing, as feathers represent the air element. 
 
Types of sage/bundles and their uses:
Cedar bundle: cleanses, attracts good spirits
Dragon's Blood sage: cleanses, protects
Eucalyptus bundle: clears the mind, enhances relaxation 
Lavender and white sage: promotes deep relaxation, useful for cleansing sleeping spaces
Pink sinuata flower and white sage: cleanses, promotes compassion and gentleness/femininity
Rose petal and white sage: cleanses, promotes love/romance
White sage: cleanses and purifies, promotes healing
 
All sage/bundles are approx. 4" in length (except 9" large white sage) and weigh approx 30 grams. Individual weight and measurements may vary.