Do not prune spring blooming shrubs like lilac, quince, flowering cherry until the bloom is over. Take hardwood cuttings. Roses Plant bare-root roses during the last week of December. It may be raining a little outside, but newly planted trees and shrubs will need additional water. Feed any new plantings.
Check supports on climbers.
Clean up and dispose of rose leaves. Do not compost. You can prune roses, now. I know a lot of people have time off from work around the New Years Holiday. I recommend waiting until January.