The lawn should be mown regularly now, if you can spare the time, weekly.
If you consider making a bed in the lawn, you should remove the turf, otherwise the buried grass will just regrow.
You should aerate your lawn by punching holes in it using a garden fork, it will reduce the need for watering.
If you are planing to sow a lawn this spring, the ground needs to be prepared, dig it over and remove perennial weeds.
Do your lawn and yourself a favour and keep off of it during times of frost.
Did you recently sow grass? This is the last chance to mow it: however do not cut lower than 2.5cm (1in)!
The leaves are falling: they should be raked off lawns, otherwise they will block out light and air penetration!
This month is the last chance to scarify your lawn to remove layers of thatch! Aerate and top dress the lawn, too.
The lawn should be mown less frequently now: raise the height of cut, too, as the growth rate of the grass slows down.
Are you tired of caring for your lawn? You could minimise the lawn area! Some reasons to do this: http://j.mp/OBh0pl