3356 SE Belmont St., 503-235-6041, aaltolounge.com.
Boasting a sleek, midcentury modern vibe, Aalto Lounge is best known for a ridiculously affordable happy-hour menu ($3 cocktails and $10 wine bottles). But this special spot offers much more: late-night DJs, solidly built cocktails, and a cozy, secluded backroom. In other words, the perfectly intimate setting for a couple.