Morning all! Hope the long weekend is going well for everyone. :)
I've been expressing pretty regularly, EmsieRo. I use the Avent Isis Electric Pump. I got the kit which included the storage bag, manual attachment and battery pack since I intend to express while I'm doing my Keep in Touch days at work. They do storage pots too with an adapter for the pump, which can be put in the freezer and fit in the bottle warmer - which has a defrost setting. Handy. 
I express at least once a day, normally at about 10:30am while Mindy is having her long morning nap. This yields between 4-6 fl oz in total, taking about 10-15 minutes per side. That then is enough for DH to give Mindy in a bottle in the evening at about 7pm (after I feed at 6pm...) and that then keeps her satisfied until about 8.30pm, so I can at least grab a short break during the manic cluster feeding.
I also use the pump occasionally first thing in the morning if I'm particularly engorged, just to soften everything up so it's easier for Mindy to latch. I needed it this morning, she slept from 10pm until... 7am!
The full night of sleep was fantastic, long may it continue, but I did wake up with boulders in my bra. 
I did manage to feed her and express an additional 4 fl oz in that first sitting today though.
I might go and try to express a bit more in a minute, while she's having her morning nap. Build up a bit of a stockpile so I may someday be able to go out during the evening-!
Yeah, I can dream. 