metrobaby, HD and I are discussing this this morning on another thread
when to wean - hope that link works!
I express 3 times in an 8 hour day, so feed baby at 7 (or 6.30) and 8am, express a bottle of 4-5oz at about 11, 1, 3, and then feed the baby at about 5, and 7pm.
baby takes 3x4-5oz bottles at about the times I'm expressing.
you shouldn't feel guilty about formula. I would use it if found expressing harder. I feel guilty about dd3 going to nursery younger than the others and for more days. that's partly why I am bf without formula for longer - compensation!