This popularly held bit of wisdom may sometimes ring true - and paying a little bit more for certain items (such as coffee or toiletries, for example) could mean that whatever you want is of a higher standard than buying 'basic'.
Having said that, paying a higher price does not always mean you'll get higher quality too. For example, medicine cabinet staples such as painkillers/plasters for dealing with your kids' colds and scrapes could work out a lot cheaper (and be just as effective....





