The toilets at Cropredy are famous, plentiful, and the ratio of mens toilets to womens is biased in favour of women. Cropredy is organised by a woman, that's why. These are the cleanest, most fragrant toilets you'll find at any music festival. Admittedly, in the early hours of the morning, they may be a bit dodgy, but if you need to use them in the early hours you're not going to be too choosy. Otherwise, I stand by my recommendation. For those that need to sit down for relief, there are wooden seats, and PAPER. If there is no paper, check next door, and tell a steward when you leave. Paper will be restored soon. (You may want to bring some paper, though, you never know.) As you flush, scented water will flood the toilet. Last year, the scent was called "bubblegum". Make of this what you will.
Andrew Parry sent a tip - use the toilets in the main field early on (when they have had fewest customers) and those on the campsite later on (when they have been cleaned and restocked). Not because of smells, but because they have the smallest queues. Andrew also recommends taking a Porta-Potti, left in the outer tent - if you have one. "Surprisingly, they don't smell, and seem quite hygenic - and it beats taking the kids across the field in the middle of the night."