The Ken":17kje3ge said:
only ever use value nappy sacks, you are throwing them away
Yup - and don't bother with any of those fancy, schmancy things for putting nappy sacks in, or bins for the bags - you'll wanna tie that kangaroo down, sport, and hoof it straight in a bin afterwards.
My other tip? People get all sorts of things for sterilising bottles, and many use microwaves - but I find it to be slow and a JIT thing. Cold water steriliser using Milton - change the water daily, wash a bottle / lid / teat, bung it in the steriliser, 30 minutes later it's ready to use, you don't even have to rinse it. So you can wash them and just keep them in there until you're ready to make one up.
Just to say, there's a fair amount of money wasted on stuff like that, that either never gets used, or is just over the top for what you will use.