Did you know that saving money, improving your health and boosting your career is as simple as having perfect timing? Here’s what you need to know about the “best times” to do things. These tips come from the new book: Buy Shoes on Wednesday and Tweet at Four, by Mark Di Vincenzo:

  • Why is Wednesday the best day to buy shoes? Because according to a study of online retailers, shoe stores tend to offer their biggest discounts on Wednesdays. In fact, our expert says it’s common to find shoe discounts up to 40% off on Wednesdays.

  • Why is 4 o’clock the best time to send a tweet? Because statistics show that 4pm is when Twitter users are “most active.” So, if your goal is to have the largest possible audience reading your tweets, you should aim to send them at 4.

  • When’s the best time to ask people for a donation? Our expert says it’s any time on a Sunday. Because research shows that we’re much more charitable on Sundays. In fact, one study found that people who were asked to give on a Sunday generally gave 51% more than on any other day.

  • When’s the best time to go on a diet? Our expert says start planning your diet now, for the winter months. Because our bodies work harder to burn calories when it’s cold. So, we’re more likely to lose weight if we diet during the winter, compared to the summer.

  • When’s the best time to break up with someone? According to the American Heart Association, you should always plan to deliver bad news in the evening! That’s when blood pressure levels tend to be lower, so people are less likely to react to bad news by having a heart-attack! In fact, that’s why most companies wait until the late afternoon to announce layoffs.

  • When’s the best time to ask the boss for a raise? Most experts say wait until January. That’s because most companies plan their yearly budgets to end in December. So, as the year winds down, managers tend to go into “savings mode,” because they want to end the year being as close to on budget as possible. But in January, when a new budget starts, managers are less focused on the bottom line. So, they’re more likely to grant you that raise.