Get prepared for winter by planning a hot chocolate bar during your winter party!  We found this idea at Indianapoluxe and love their take on a simple hot chocolate!  Rather than simply providing hot chocolate, they give everybody the chance to customize it to their preferences by adding peppermint, peanut butter, marshmallows, or caramel.

This is one of those small elements of an apartment party that isn't huge in itself, but adds a little magic to the event.
 

What other ingredients would be good to add?