at the end of (one's) fingertips
1. Physically within one's reach or in one's hand. I know many people enjoy reading on a mobile device, but I still prefer a real book. I love the feeling of paper at the end of my fingertips. I always keep a glass of water at the end of my fingertips when I sleep, because I hate waking up thirsty.
2. Easily or conveniently accessed, accomplished, or achieved. With our new 24-hour phone service, you have quality customer care at the end of your fingertips. Because the Internet is so easy to access these days, we have every resource imaginable at the end of our fingertips!