> Because your storage requirements would grow indefinitely as you would need to store a record for every task ever performed. The only info that needs to be s

> Because your storage requirements would grow indefinitely as you would need to store a record for every task ever performed. The only info that needs to be stored is the ID of the finished task. If, say, the ID is expressed as a GUID then we're talking about 4 ints or 2 longs worth of data. Even so, these records are supposed to be garbage collected.