Upside down is meant to be easier with boots on - they take the brunt of the friction. Hope your bruises feel better :)
And upper body strength. Apparantly I have that. God knows how, I'm a right weiner
wow that does look pretty amusing ... thanks a lot for the comment, the nude run around the house was very fun indeed. my sister even took a pair of pictures, but i'm afraid they won't find their way onto my moblog =)