Meat used for stir frying will slice more easily if first put in a freezer for 45 minutes to 1 hour. When using oil and vinegar dressing on salad, add oil first. Toss and then add vinegar. Your salad will stay crisp. Catsup flows easier by pushing a straw to the bottom of the bottle, then removing it before pouring.
Air gets in, and the catsup comes out.
Ripen tomatoes out of direct sunlight, which softens rather than ripens them. Don't wrap potatoes in foil. Foil traps the moisture and steams potatoes rather than bakes them. To keep noodles or rice from boiling over, add a tablespoon of oil to the water. Chopped fruit and nuts disperse easier in cake batter if they are lightly floured before adding.