Venus spreads her wings in Sagittarius from December 15th to January 8th. Romance, self-esteem, values and money all get a happy hit from Sag's box of goodies. More optimism, more possibilities, more adventure, more fun. Yippee!
But before you get carried away, take note of December 15th-20th, when Neptune in Pisces throws a highly romantic, but ultimately doubtful, square at Venus. Then she'll be feeling a painful square from Chiron (the Wounded Healer) at 5 degrees Pisces. It will be easy to get carried away and overdo (Sagittarius) it. Spending too much. Drunk dialling (or Facebooking). Saying "Yes" when you should say "No". Questionable decisions that undermine your precious self-worth. And Chiron's square will ensure that you feel the embarrassing consequences ASAP.
How will you know the difference between a legit opportunity and a Neptune induced trip? For these 5 days, you won't. Sure, Venus will be getting a supportive trine from risky Uranus (in Aries) on December 4th. But that's no excuse to go bananas. It may feel like an excuse, but trust me; hard squares outweigh easy trines every time. So use caution, and wait until after December 20th to spend big, confess your feelings, invest, etc. After that, shoot for the stars. Venus in Sag loves big, laughs AND knows how to let go. Unbeatable combination.
BTW, Neptune and Chiron in Pisces will be throwing a one/two punch of illusion and disappointment to all natal/transiting planets in the early degrees of Sag until mid-2013. It's a test, see? Before you sail into Sagittarius' high-flying zone, you'll need to check your craziest, most destructive illusions at the door.