I don't know if you all have these, but I thought I'd recommend them. When I am feeding Ella I pop a cup type thing over my nipple that she's not on, DH bought then from Boots. It has a hole in the middle for your nipple, and a spout on the side that needs to be facing upwards. It catches the milk that normally leaks when you let down. I collect it through the day (after each feed I decant into a storage container and pop into the fridge). Sometimes I get as much as 2oz in there from a single feed. Because I struggle with my milk supplies sometimes this really helps as I give Ella her final feed from a bottle and I can normally collect enough through the day to give her a final feed from it. I also recommend the Avent reusable storage containers. They are screw topped, can be put in the freezer and hold up to 6oz of milk. They can also be used for food later on when the baby is weaning. They are about £10 for 10.