Baby is approaching 3 weeks old.
He's never been able to latch so has been bottle fed since about 36 hours old. He's been tried several times at the breast over his three weeks, we spent a week in hospital following birth so had lots of support, seen feeding specialist etc. It just isn't happening. As a result he's fed a combination of expressed milk and formula and is taking both happily. He's a hungry baby, growing rapidly, feeds very well and keeps it all down.
Initially I had a very good supply, the midwives were shocked at how much I was able to express, but complications during labour mean I'm now on medication which I was warned could affect my supply. Add to this a hungry baby and even expressing several times a day, I'm only getting enough in total for one full feed a day and this amount seems to be reducing.
I'm home all day today so going to try "power pumping" 
Any other tips/old wives tales/witchcraft to increase supply?