Thats how DH and I are. We tip based on the service. I set up a tipping thing where we tip $1 - $5 depending on service. If service is VERY horrible, the most I'll tip is $1 or nothing at all. However, my stepdad brought out a good point one time. He told me its more of an insult to tip 1 penny then nothing at all, cuz the waiter might think we just couldnt afford to tip or forgot to. So being that said, the worst service you can ever think of, 1 penny. If its perfect then $5. As for $2-$4 - $2-$3 depending on what happened with service, and $4 if it was good but not great. There are times I wont tip at all. Like one time me, DH went to applebees for dinner with 3 friends. Well for starters, the waiteress was OK. I expected more from her, cuz I actually worked with her before at another job. Then applebees decide to run out of chicken? I ordered, she didnt tell me straight off that they were out of chicken and came back and told me like 10 mins after I ordered. Then on top of it all, the didnt fix my DH burger right. Then all of us ordered drinks, a couple beers, I ordered a strawberry daquire with no alchoal, and it took FOREVER to get our drinks. Our food came out before the drinks did! Luckly the manager caught wind of this and came and told us the drinks were on the house. So yeah, it was a pretty bad meal. DH and I are not doing the DDP. We were considering it, but my biggest fear was not using all the credits. About 98% of our breakfasts are TS (character meals mainly) so which means we might not be hungry for lunch and the dinners are about 98% TS as well. So I could end up having all these CS credits going to waste PLUS I dont like the fact that the tipping is included believe it or not. I like to tip my own amount. If the service is bad, they get the most $1 - NOT 18%! I mean say the meal came to $50 - thats a $9 tip, they most certainly wouldnt deserve if it was horrible.