Before your next run or ride, think twice about what you're putting on your feet. If you have blisters or bunching, or if you can't even tell what color your socks are because they're so old, we'd recommend an upgrade. Something like Swiftwick's One Vibe socks.
With their 200-needle count synthetic Olefin construction, the One Vibes wick moisture away from your feet before you know it's there while retaining a second-skin fit that doesn't move around. Swiftwick finishes them with compression at the arch and reinforced, one-inch cuff to encourage circulation and support for your muscles.