It's great that you took such a decision back in the day and I'm pretty sure that you're running it well. What kind of payment gateways are you using and is it affordable enough for your margin of profit? I always struggled with my water consumption as my coffee shop in Lancaster needs literally tons of water every day and it can be stressful if you don't switch to a water provider with competitive pricing. I found a great chance and took it as there was one particular company that offered great prices for the amount of water I used and saved me a 30%.