You will have to do this again in the Spring come cool season crop planting but you can do a lot now to make it easier for yourself come Spring.
At this point (in Maryland) you probably have had issues with multiple diseases and pests. I still have a white-fly problem and will be sadly cutting down all my Winter kale.
Take a look at my pictures and you can see tomato remains and weeds. Disease harbors in old plant (if you have themmaterial and can actually take hold on leaves on the weeds. I don't know enough to tell you which weeds are bad but the less growing the better. Pests, like slugs, can live under leaves and dead materials.
|December Garden Waste: Gary Pilarchik|
|Clearing the Winter Garden: Gary Pilarchik|
|Cleared, Cleaned and Turned for Winter: Gary Pilarchik|
|A Different View of a Turned Garden: Gary Pilarchik|