Extra costs of cruising: Who to tip

we usually drop off two bags one for each of us and I usually do five dollars a bag so I'll give the guy 10 bucks usually

we usually go with about just to tell how much we tip on a cruise between 10 and 15 a day right normally on the first day I hand the guy a twenty dollar bill

if you want good service you um yes yep I mean not saying that thing that you're not gonna get great service if you don't tip but I'm just gonna say people aren't going to be looking out for you

I'll hand them five or ten dollar bill you know just to say thank you for keeping this clean