Some everyday tricks are so useful and simple they can come in handy to more than one generation. Yet over time, they’re somehow forgotten, and they turn into what’s called "grandma’s tips." GIGGAG decided to recall the past and collected for you eight tricks from childhood, which everyone forgot for some reason.
If the month is on the knuckle bump, there are 31 days. If it’s on the gap — 30 or less.