I have about 80% used, with 45mb free. I guess I'm just one of those cautious people that likes to have oodles of free space 'just in case'. (My Girl guide training - always have food in the cupboard, a bit of money in the bank, a day or two of annual leave in hand and space on your drives. )

Since others seem to have the same or less, and aren't worried, I shall hereby stop worrying.