Little Engine -
Try this for your blisters. You should be able to find them in the foot care section of your local drugstore. Place them over any spot that you are prone to blisters. I use them on the tops of my foot near the ankle because my rollerblades rub a bit there. They work great.
BandAid Blister Blockers
3mom -
Rollerblading is great exercise once you get good enough to get up a little speed and endurance. And it's fun! I try to go out for a long roll every Sunday, weather permitting.