Many councils change their bin collection days over the Christmas period. This is really useful information that you can communicate to residents in your ward through an email and through social media.
A short and simple template email from ALDC that you can copy and adapt can be downloaded here.
To give further inspiration, below is a really good example email from Cheltenham Liberal Democrats:

The really important thing is that you send an email like this to your list in the run up to Christmas. It is a great service you can provide your community to just remind them of bin date changes.
- A full article from ALDC on emails you can send residents over Christmas can be found here.