Most of the country is under ice and snow right now and or it is very cold outside.
The cold weather does constrict blood flow to the extremities, putting added pressure on those with cardio-vascular issues. Even if you don't fall into this category, it is always good to stretch and warm up the body before you do any outside activities such as snow shoveling or helping a youngster build a snowman.
My new Winsor slimming Pilates dvd set with the Accelerator, has a few 10 minute workouts that would be perfect for this occasion. Look on the web-site under Winsor Slim for more information.