Atamjeet, I agree with the others, just because you are working doesn't mean you have stop modelling. In fact, I normally get 45 mins to an hours modelling in at lunchtimes. I just bring a quick packed lunch, then clear the decks for modelling. My equipment packs into a small bag, I have a mini sized cutting board and a small A4 box for card stock. And it's very theraputic too!