One of my favourite ways to spend Saturday morning is to wander through Temple Bar, and the highlight is the excellent Temple Bar Food Market. There's a wide range of stalls selling fruit & veg, bread, cheese, meats and cooked meals. My personal favourite though is Ariosa Coffee. Ariosa do a very nice macchiato and their decaf is one of the best in Dublin.
Normally the Food Market is in Meeting House Square. Starting this weekend though it'll be spread around Temple Bar to allow the construction of a retractable canopy over the square. My experience of last summer's Summer Sensational festival has convinced me that this is a very good idea: nothing ruins outdoor events quite like rain.
Here's a map showing the new temporary locations of the market stalls. (As of last weekend Ariosa expected to move to Curved Street.) Some weekend when the weather is good and you want a nice relaxing Saturday morning, go take a look.
More information is here.