Flip-flops and flat sandals for long wear. They offer almost no arch or heel support, and your toes grip constantly just to keep them on. Fine for the pool, not for a full day on your feet.
Ignoring your calves. As Chapter 3 explained, tight calves keep tugging at the heel. Stretching the foot alone often isn't enough.
Rolling too hard. Aggressive pressure doesn't speed anything up. Stay at a 5 to 6 out of 10 and keep sessions short.
Complete rest. Resting sounds logical, but long stretches of not moving can leave the foot stiffer. Gentle movement, stretching and short walks usually serve you better than staying off your feet entirely.
Too much, too soon. A sudden jump in walking, running or standing is a classic setback. Increase activity in small steps, around 10% at a time.
Worn-out shoes. A shoe with a collapsed sole or a worn heel can't support anything. If it's been a year or more of heavy use, it's time.
Bare feet on hard floors. Covered in Chapter 6, and worth repeating, especially first thing in the morning.
Skipping the warm-up. Cold, stiff feet are easier to irritate. A minute of ankle circles and toe stretches before you get going makes a real difference.