Since many of us have to squeeze 30 minutes of exercise into our schedules, it's nice to take a chunk of time once a week to devote to a longer workout. Not only does it help you feel more relaxed since you won't be rushed, but it's also good for your endurance. Plus the longer you work out, the more calories you burn.
So this week (and every week if you can), plan a workout that's longer than usual. Go for a 45-minute run, an hour bike ride or walk, or drop in to a 90-minute yoga class. You'll feel amazing afterwards and it will also make your shorter workouts throughout the week seem a little easier.