I already talked toilets at festivals here
But I'm revisiting with a few top tips.
Ladies, take a shewee (or similar - there are a few on the market) and you can (with a little practice) pee like a boy ie standing up! This doesn't sound exciting now, but when those loos start to get ... full, it will be more useful. Some portaloos have a urinal in them and more and more festivals provide a 'female urinal' for those of us short on penises. It's lovely not to have to sit on a messy seat or hover over a heap of yesterday's curry.
The top tip for Shewees (and their ilk though I only have a Shewee - with extension tube! size matters) is that you should practice before you need to use it - you'll need bladder control so you can pee slowly into the funnel to avoid overflows, and also carry a wad of tissue to hold where shewee meets flesh, just in case, you don't want a trickle down your leg because your 'seal' wasn't quite right. Practice in the shower.
But men, ladies and small children alike will not be able to get away with only peeing. So at some point there shall be a number two. Try and use a compost loo if you can as they seem to be not only more eco friendly, but more pleasant than the enclosed chemical plastic space of a portaloo.
Late at night, in your tent, why not use a potty? Yes even the grown ups! Line the potty with a plastic bag, lay a cheap nappy in the bottom to absorb any wee and then do the deed, tie the bag and bin the lot. I purchased a ShitBox a few years ago which is a cardboard box with a hole, to use bags and cat litter in a similar manner! But I don't think they are still in business. There are similar ideas on the market though, such as these
Don't take any form of chemical toilet to a festival. There are no emptying points.
Take tissues/toilet paper, wet wipes and hand gel.
Not a sponsored post - seriously - no one is paying me to talk poo and pee!