5 Serpentis. I happened to notice this while finding the globular cluster M5, which appears close by in the sky. Magnitudes 5.1, 10.1, sep 11.1" at PA 36 deg. This is a physical double about 83 light years distant, with a projected separation of about 282
Beta Scorpii AC m 2.6, 4.5, sep 13.4" at PA 20 degrees. This is a pretty double, although purely optical, per the WDS catalog.
Delta Herculis, m 3.1, 8.3, sep 13.7" at PA 293. The primary lies about 75 light years away. After closing for many years since discovery, this double is now separating, and is not believed to be physical.
I frequently happen upon double stars by chance, while sweeping, or star hopping for faint objects. I like to identify them and log them, if particularly interesting.