Although the pay rates are not very high, Royal Mail are often looking for temps over Christmas.
Although it may be too late now to apply for a job as a Christmas temp, there are many positions besides postmen and postwomen that the Royal Mail has to offer people.
Working in the sorting office can be a good evening job for students, and in some cities around the UK, the pay rate is higher than minimum wage even for 16 and 17 year old students. If you don’t like the idea of early mornings and delivering post in the rain, look at some of the other positions available.