The first line of advice here is: if you think a memory card is going bad, stop using it! Check out my tips at the bottom for how to keep your memory card working well.
Back in 2010 I was travelling the Irish countryside, much like I do today and I stopped to photograph the little visited Ahenny crosses in County Tipperary. These 8th century sandstone crosses are some of the finest early Christian stone craft in Ireland and the first to be made from stone rather than wood, hence they bear some details that come from the wooden crosses.