Gone are the days of huge cash register full of … cash. These days most banks charge to bank cash (if you can find a branch) and HMRC definitely prefer electronic payments and traceability which leaves cash based businesses mainly desirable for money laundering.
These days businesses are moving towards a simple tablet loaded with software like Clover that tracks stock as well as sales and card receipts. No more cashing up at the end of a long day. No more counting pennies and trying to agree everything to the z-listings. Instead the bookkeeping for sales, receipts, and stock is automatically linked to your accounting software with Xero effort.