Sage and Palo Santo are typically used to cleanse a space of negative energy, while incense brings in a specific scent blend to shift energy and elevate your mood (think aromatherapy). Each should be used with set intention for maximum benefit! 
SAGE
Sage is thought to clear out energy for a powerful reset and fresh start, so it’s great to use when moving into a new place, deep cleaning, before meditation or after an argument or any illness. Light the bundle by holding a flame to it until it begins to smoke, then calmly move through your space, gently wafting and directing the smoke to where it needs to go – highly trafficked areas and stale corners alike. Sage ya later, hater.
PALO SANTO 
A much sweeter and subtler scent than sage, these sticks can also be used for powerful purifying and cleansing rituals, while keeping energies grounded and clear. 
Palo Santo is thought to calm the immune and nervous systems and enhance creativity, making it a great option for starting out your day as part of a mindful morning routine. You might also want to try lighting up at the office, with permission of course!