Door hinges: With the external hinges, usually it's the top hinge that wears so that the door sags. The top hinge can be adjusted forwards a bit by loosening the nuts under the wing, lifting the door, then retightening. A small 1/4"-drive 7/16" socket can usually be wiggled onto the nuts, though it's tight to get in there. Be warned though that, if they're significantly corroded, you may find that either the studs snap off or they just tear out of the hinge. You may also find that the hinge is already pushed forwards against the outside seam, in which case to get any movement you'll need to grind a bit off the hinge. If the sag is bad, then a new hinge can be bought (but it'll need to be painted).
With all these "little" jobs on a classic, it's well worth DIYing them... otherwise ownership gets expensive.
by the way, paying for TMF membership gets 7% discount at MiniSpares. So membership just about pays for itself if you spend more than £70 on parts each year. Which you will 
