Ok I have never actually been transferred to ground until a couple days ago. I landed at my home airport instead of the normal "Delta Charlie to the ramp this frequency" I get turn on Delta and contact ground so I turn announce to ground "with you" and continue to the ramp. Just before entering the ramp I get asked to contact tower when I get a chance. Eeeek, now I'm freaking out.. They were really nice and cool with me basically they were like hey you don't keep going once we tell you to contact ground you wait for ground to release you. I apologized and explained that I do remember reading about that but have never actually had to practice it. He was blown away that I have never been asked to contact ground. He asked me what I do at other towered airports and I told him I have always requested a progressive taxi and have only ever flown to two other towered airports and have only done that once on my long cross-country. I felt like a huge dumb ass luckily our tower guys are really cool and laid back so he just explained the procedure to me and said I can call him with questions about anything anytime which it though was really cool. Tell you one thing I won't make that mistake a second time LOL.