Make sure to feed birds and give them water on a regular basis. Nuts, seeds and bread crumbs are all great choices.
When the temperatures are getting lower, why not take a break, sit in your warm home and look at some nice seed catalogues?
Why not go around the garden and collect the various seeds that grow there?
Think about what you want to sow next year and order seeds accordingly.
Make sure that you do not put weeds with mature seeds on the compost, they might spread when the compost is used.
Give your soil a boost by applying green manure! Then scatter seeds over it and water it well!
Some early summer plants will have ripened seeds to collect, you should store them somewhere cool.