If you stop walking, then try it again, you'll realize the impact it has. Early on walking was my exercise of choice. 4-6 mile walks at least 3 days a week. Then I moved on to what felt like more efficient workouts: jogging, ellipticle, bike, body pump, etc. So one day I decide to go for a 4 mile walk, and I was sore after! It works different muscles from the other exercises and I had been neglecting those muscles.
Mini Goal 1- 5%