1 . When I started secondary school, aged 11, I found myself in a class with only two children I’d met before.     1    . In fact, before the end of the day one I knew all 28 of my new classmates by heart. Even in my thirties, when I found myself back in school as a teacher, I could still learn all the students in my classes with relative ease. Here are three quick memory techniques that help me.

    2    . Remembering people starts with listening to what they’re called, and taking a proper look at their face. I make a point of repeating their names in my head, and silently saying something to myself about their appearance.

Spot similarities.     3    . So, who does this person look like? Do they share a name with a celebrity? Is there anything about them that reminds you of places, events, or experiences you’ve already got filed away?

2 . How to store leftovers (吃剩的食物)

One of the things we most need fridge space for is storing already-cooked extra food. How to store leftovers can often vary, but the most important rule is to refrigerate them right away, even if they’re still a little warm.     1    .

From there, use the expert Palmer’s tips below to keep your leftovers fresh and tasting their best on day two.

    2    . Palmer likes glass containers (容器) with tight-fitting tops best but points out that reusing other types of containers is very fine for leftover short-term storage. “Most of us are looking for ways to reduce our waste, so don’t be afraid to clean and reuse proper containers from grocery (杂货店）items or takeout to store ingredients (调料) and leftovers.”

Give canned foods a new home. If the food originally came in a can, put it in a different food-storage container—whether that’s glass, plastic or silicone—because the metal on the rim of the can has the potential to leach into the food.

Cover up strong-smelling foods.    3    . “Don’t leave items with strong smells, like cut onions and mustard, uncovered in the refrigerator,”Palmer says. “Items like eggs and soft cheeses can absorb those odors, and it can change their flavor.”