sewing zips

I have been busily sewing zips for some of the shops I stock.  I can't wait for some new fabric to arrive...ordered some for spring..have also been working on finishing curtains for our living room..(about time after nine years of living here!) and sewing some designer pillow covers to bring spring in.  Am totally loving a print I found which is green-blue geometric.  Trying to tackle invisible zips too...any advice would be appreciated.  Enjoy the sun!