I generally tip better, especially in eateries, while on tour than any other time. Mostly because I'm hungry and genuinely appreciative for the food. Also because bicycle touring is a relatively inexpensive gig and I feel like I can spare the tip money. If I find a half decent stealth campsite for the night, get up and head for a local breakfast place and get good service and food, I'm probably going to leave the best tip the waitress gets all morning. Especially if shes pretty.