I use the seaward Europa plus so it's all stored automatically. I have to key in a quick description but it gets done while tests are being carried out so no time is wasted.
I often print out multiple results per page. I tested at a popular drinks manufacturer and it contained about 119 pages with 30 odd tests per page. The guy was ecstatic with my presentation and couldn't have been happier.
However some clients are interested in quick reliable service with stickers on appliances being more than adequate. Each to his own i guess, but you can discuss this with the client when arranging quite simply.
If you choose to present the results it will probably depend on the quantity of results as to how you display them. You normally have many options be it 1 test a page, 2 tests a page or a hundred...