Thanks for the input guys
I will definitely get some flight socks before I go, and where possible try to walk around the cabin as much as possible. In the past I used to ask for a window seat, but now I get an aisle seat so that I can get up without disturbing the other passengers in my row.
Regarding the low dosage aspirin, I don't have any plans to take it yet, I'm in my early 40's, fit and healthy and not currently taking any medication (other than the anti malarials I'll have to take for Borneo).
One final question, should I wear flip flops or sandals with my flight socks
