Mercury, the planet of sales and communications, turns retrograde in the sign of Aries.  It’s never advisable to buy, sell, or speculate while this planet is moving backwards (the retrograde lasts until April 15th) so avoid making any big purchases, promises, and pledges if you can.  For those of you who are already engaged in a business transaction then you should add two weeks to your deadline.  This will account for any unforeseen delays or last minute wrinkles.  Signs most affected: Aries, Gemini, Cancer, Virgo, Libra and Capricorn