One thing I was happy about in getting my watch was to be able to start using apple pay. I don't like carrying cash around with me, mostly because I never seem to get to a bank or remember to get cash back when shopping for groceries. But, I don't like the lack of ability for the app to include a service tip beyond what the actual product payment is. Suddenly I find the need, even with Apple pay, to carry around singles to tip the barista. This makes me sad. Has anyone found a solution to the lack of a tip ability with Apple pay?