Follow those pictures to build a very cheap SD-card adapter.
<gallery>[[Datei:BuildSDBreadboardHolder_Step1.jpg|frame|left|You need one single-row and one double-row pinheader cut to 7 pins each.]]<gallery widths=300px heights=300px perrow=2>
Datei:BuildSDBreadboardHolder_Step2.jpg|Using pliers to bend one side of pins < shape. Don't bend other side.
Datei:BuildSDBreadboardHolder_Step3.jpg|Bend all 7 pins of one row, leave other row non bend. You should end up like this: