Green Wellies - a contract and receipts are basic to running a business.
Lizzie - the latest ad for postal worker jobs shows a full time salary (after a year of part time) at about $24,000/year. 40+ paid days off. Not bad for an 18 year old. No figures on union contract increases.

US jobs give one week of paid vacation (sometimes two)for the first year plus about 10 paid holidays.