Just some general tips:
If you breastfeed, then poopy nappies can honestly go straight in the washing machine. Breastfed poop is water soluble. If you’re formula feeding, it’s best to try and scrape the majority of the poop into the toilet when changing nappies. Scraping also applies once baby is weaning. Solids go in the toilet. I used to have a plastic spoon I kept away in the bathroom for such scraping. You can also use disposable liners, or a fleece blanket cut into small rectangles makes a good liner. The ‘dunk and flush’ method (holding on tight to the liner so it doesn’t disappear down your toilet) gets rid of most solids stuck to a liner.
I used a nappy bucket with a tight fitting lid for pre-washing storage, then had a large wet bag for taking out and about. You can get large mesh bags that go in the bucket. If you take the nappy apart before you put it in the bucket, you can just put the mesh bag, contents and all, straight in the machine.
To wash, do a quick cold rinse to remove solids and help prevent stains, then a 40 degree wash with a full dose of washing powder is sufficient.
Don’t use fabric conditioner, it reduces the absorbency. The only exception is Bold 2 in 1 (only the Lavender & Camomile variety, not the ones with Lenor added) as the fabric conditioner in the powder is clay-based so does not affect absorbency.
If any stains get through the wash, sunlight is great for getting rid. Just hang the stained bits out in the sun. I also didn’t mind if I had a nappy loaf out drying and they got caught in the rain. Rain water is great for nappies.
If I think of anything else I’ll be back!