Should sundry expenses be added to Purchases, and if so, how?

Hi, thanks for your reply.

These expenses are all business expenses, so I assume they should be added to my accounts as such, in the same way as I’ve logged Expenses for tangible items like Stationery as Purchases.

If I’m right, how do I enter such expenses as Mileage without a Supplier? I could feasibily set up TFL as a Supplier and create Purchases for Tube Travel or Congestion Charge etc. even set up Boots The Chemist as a supplier for my on-location lunch, but I’m stumped otherwise.