Hanging household ordinary pictures & photographs in papanui, christchurch

I have about 20 to 30 ordinary Pictures/Photographs to be hung in my retirement apartment. I am too old to be doling this and don't have the appropriate tools or fixtures. Also I no longer have my wife to advise on suitable locations. Have sorted where I think would be appropriate but open to alternate suggestions. I am assuming you will have a range of hanging fixtures (nails ,hooks etc). I know one picture is hung flush to wall but cant find fittings. Due date : Before Fri, 17th May Location: Papanui, Christchurch Thanks