Giveaway:
If you've missed out on some of the earlier give-aways then don't forget that you can still unlock them over the whole giveaway period.

So check your inventory and join that steam holiday group to get those free things!

Sale:
Those of you who are new to steam sales - wait until the last day to buy the item you want unless it comes up as a "daily deal".

Even though everything is discounted - the daily deals are even more heavily discounted.

If it doesn't come up on sale then you don't lose anything buying it on the last day.

Happy bargain hunting!