Honestly, my immediate practical response would be: stick it into savings until a family member needs help, or you actively need to replace something that is useful to your everyday life (as I did recently with my laptop, which is one of my writing tools of the trade). If we're talking a huge bonus, I would want to send money to our family's school overseas for impoverished children, and possibly establish an institution of learning and charity in my area - such as a library, or school, or some other foundation that could provide good and knowledge to help others improve their means of living.