If you are interested in an organic lawn, then NOW is the time to put down your pre-emergent.  We used Jonathan Greene (Thanks Paul!) Weed control (corn gluten).  It is pretty powdery so wear a mask when laying it down.  We have cleared all the beds of weeds and leaves, pruned our roses and are ready for the spring.  I’m also in the market for a simple trellis for my “new dawn” roses that I planted last fall.  I’m excited to watch them grow.