For readers in a hurry
Five minutes instead
Most people who read a sheet like this will not end up volunteering, and that is perfectly all right. These take five minutes and are worth doing.
Report someone sleeping rough
StreetLink sends the location to a local outreach team and tells you what came of it. Not for an emergency — call 999 for that.
Give the thing they are short of
A charity would usually rather have what it needs than a bag of assorted clothes. Most publish a list. Read it before you gather anything.
Set a reminder for the autumn
Winter shelters recruit from about October and fill quickly. A note in your calendar now beats finding out in January.
Or Read the notices after all.