I had the information at my fingertips and hadn't used it.

我手头就有这种信息，而且我还没用到。

《柯林斯英汉双解大词典》

At my fingertips.

我的指尖翻开。

youdao

I was given the gift of mobility and the world was at my fingertips.

我得到的流动性礼品和世界是我的指尖。

youdao

But then again, here I am armchair quarterbacking a PR problem without the luxury of all the facts at my fingertips.

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For even when I pointed out that I had at my fingertips the answers to the real questions they needed answers to, I once again got radio silence.

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For my family, this means less trips to the library and new books always and instantly at our fingertips.

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