Avoid dirt smears or soap streaks when cleaning your windows, ... Keeping them free of dirt is important, both for aesthetic and hygienic reasons, and this should be a straightforward process.

People really care about this stuff, and companies are well aware of it. Some users complain when their streaks are ruined by app malfunctions, power outages or the like, and even lobby to have their ...

It turns out that a streak may have as much value as whatever activity it is you’re doing, according to new research from Alix Barasch, an associate professor of marketing at the University of ...