Hiya,
I use a nursery for childcare three times a week (for the full day - 7.30am to 6pm). Also got additional childcare for my ds over the holidays as he is in school, but as dd is only 3, there are no additional costs for her over that period.
However, what do you do after the third term (Summer Holidays)?
Did you find you still used the summer to do university work, so used the childcare, or did you put a retainer on the space down?