Imagine your Platonic ideal of your working conditions. The perfect chair, the perfect pen, the perfect lighting and temperature. Unlimited time without distractions and perfect concentration.
This exercise might be useful in two ways. First of all, you will be able to see that your present conditions are not perfect, but they might be changeable in small and large ways. Go ahead and change a few things that might be already in your power. Next, realize that excellent work takes place in less than ideal conditions. Some people like the way music or ambient noise tugs at concentration; they might enjoy shutting out a chilly room from their mind. So "ideal" might not even be ideal.