Quote From pamplemousse:

I thought that given it's very easy to get motivated, it might be quite nice to start thinking about things we enjoy about doing a PhD (not necessarily 'for the love of my subject' type things)....
SO I'll set the ball rolling:

1. I love that I can sit at my desk with freshly cut flowers, looking out of the window onto farmland on a beautiful sunny day, drinking a cup of coffee -- and knowing that I can go for a walk in the sun later, at whatever time I want.