Or you could just do the smart thing and clean out your inventory at least once a day, if this is an ongoing problem. Or just cough up the 2 bucks a month for another retainer, but trust me, that one fills up fast also. (I should know, I have 6 retainers now) SE is not going to pass up on extra retainer money by upping our inventory by much. They obviously have no intention of upgrading their servers to handle the load. So adjust accordingly and clean out your inventory.