have at fingertips
have (something) at (one's) fingertips
1. To have something physically within one's reach or in one's hand. I always have a glass of water at my fingertips when I sleep, because I hate waking up thirsty.
2. To be able to easily or conveniently access, accomplish, or achieve something. With our new 24-hour phone service, you have quality customer care at your fingertips. Because the Internet is so easy to access these days, we have every resource imaginable at our fingertips!
have something at one's fingertipsand have something at hand
Fig. to have something within (one's) easy reach. (Have can be replaced with keep.) I have a dictionary at my fingertips. I try to have everything I need at hand.