I've seen a few threads on here about what to do with baby clothes after DCs have grown out of them, so thought I'd start a thread of suggestions in case anyone is looking for inspiration!
So far I've taken clothes to:
local Sure Start children's centre - they have a family outreach programme working with people in need, were very grateful for a donation.
neonatal unit of the hospital where DD was born - I contacted PALS, who put me in touch with a manager who collected the clothes. They're always in need of early/newborn size clothes for premature babies and those who arrive unexpectedly.
friends who are expecting 
Please add any other ideas you may have! Thank you 