Steam's Annual Christmas Holiday Sale is well under way with massive discount available yet again on a huge chunk of Steam's wide range of games. The sake runs right through until the 1st of January 2012 with a new collection of daily deals each day.

In addition to the massive savings we've come to expect from such sales Valve has put on a couple of other promotions for us to enter and win great prizes.

Valve's press release today states:
The Great Gift Pile challenges gamers to complete up to six objectives each day. Completion of each objective grants the chance to win a free game or discount coupons for select games available on Steam. If you don’t win, no worries, you’ll be given a piece of coal. But hold onto that coal!

And of course there's also a use for this
Coal is the ticket to enter the Epic Holiday Giveaway. It’s called Epic because the top prize is every game on Steam. The more coal you have, the better your chance of winning. Players may alternatively choose to magically mix their coal into something shiny and new by “crafting” seven pieces into a gift from the Great Gift Pile. So this year receiving coal is a good thing.

Start filling those virtual stockings.