For several years now, I've been thinking that I have to start getting in better shape, especially if I want to keep skiing. This is a wonderful thread, and so inspiring! Now, all I need to do is get off my butt...
I do a some variation of these balances exercises when standing around at home or waiting for what ever reason when out shopping or going to appointments.
The four exercises in this short video by an Aussie trainer require no equipment and can be done indoors or outdoors. Trick is to find a way to learn good form, preferably with someone who can watch and correct minor flaws. The exercises are: bunny hops, traveling lunges, squats, and a wall sit.