Rather than waste precious time going to the shop, you endeavor to use up anything and everything left in your cupboards and fridge. (This week I have eaten mainly toast and raw carrots.) You actually have a hard time thinking how you will spend your days after work is completed. (I did actually catch myself thinking "What will i occupy myself with if not geophysics?") You stop to think "how's my word-count coming along?" when writing replies on internet forums. (No really, i did do this.) What strange habits/thought processes have you guys found yourself adopting when up to your necks in work for long periods?