Washing machines and dishwashers are usually designed with a full household in mind, which means a single person often ends up running them only partly full, simply because there is not enough washing or washing-up to fill them properly on a normal schedule.
Adjusting habits to a smaller household
Waiting an extra day or two before running the washing machine, rather than doing a load as soon as the basket looks reasonably full, often makes the difference between a half-empty load and one that genuinely uses the machine's capacity properly.
The same applies to the dishwasher, where washing a few items by hand between full loads can be more practical than running the machine partly empty every couple of days. A small washing-up bowl kept handy makes this easy to manage without much extra thought.
Cooking in slightly larger batches, even when living alone, makes better use of the oven or hob than cooking a single small portion each time, since leftovers can simply be kept for the next day or frozen for later in the week.
Heating a whole home for one person uses roughly the same amount of energy as for a larger household, so it often makes sense to focus most of the day's activity in one or two rooms rather than heating every room equally throughout the day.
Small adjustments like these do not require living any differently day to day, only a slightly different rhythm to how appliances and rooms are used. Over time, these little changes suit a single-person household far better than habits designed around a bigger family.
Sharing the odd larger task with a neighbour, such as swapping a home-cooked batch of soup for something they have made, brings some of the benefits of cooking for more people, without either household actually needing to eat alone every single evening.
