I will keep this brief.
I have my feelings on tipping. If one does not have money, one should not got out. If one feels that there is indeed money to justify going out, then I see no reason why one should budget on the tip. If one can not include a generous tip and remain within means, why go out in the first place.
I admit, a quasi-theological idea has worked it's way into my tipping, and I cannot bring myself to regret it. When I tip, I hope that my generosity borders on the level where it would appear to be prodigality. Even as we receive grace beyond what is expected, much less deserved, so also, one should tip one's waiters and waitresses, giving gladly, just for the sheer joy of giving, and in the hope of bringing some pleasure to others.
There are places I can cut, but tips will never be one of them.