I started to use my first filofax this week.
I'm a third year vet  student and as the work load and commitments have increased, I've been  kinda disorganised for the last term. Last year a friend gave me a  botanicals mini filo to take backpacking round Australia and it was  great. So I dug it out, ratched through it decided it wasn't quite right  and then hit google.
I found the philofaxy blog (http://philofaxy.blogspot.com/)
, and inspired headed out on a  hunt for a Personal size filo.
My mum bought a songbird cover design  filo for me, as a gift for graduation this summer.
It's amazing.
I  have a year planner for clinical rotations next year, week to 2 pages  for the rest of this year, to do lists, notes on whatever I need and  somethings I don't (eg a wishlist for fishing books) and contacts for  placements, vet school, friends whenever I need it.
I've even joined a flickr group and added some photo's!
http://www.flickr.com/photos/edrinkall/sets/72157624183852255/