diff --git a/client.go b/client.go
index a3100e5..1fb8f03 100644
--- a/client.go
+++ b/client.go
@@ -57,10 +57,6 @@ func getLockedRandomClient() (*ChirpClient, error) {
 func setClientBusy(userID64 int64, from time.Time, duration time.Duration) error {
 	if clt, ok := getLockedClient(userID64, false); ok {
 		t := time.Now().UTC()
-		log.Printf("setClientBusy[%s] : now %s.\n", clt.Login, t.UTC().Format(timeFmt))
-		log.Printf("setClientBusy[%s] : from %s.\n", clt.Login, from.UTC().Format(timeFmt))
-		log.Printf("setClientBusy[%s] : for %s.\n", clt.Login, duration.String())
-		log.Printf("setClientBusy[%s] : until %s.\n", clt.Login, from.UTC().Add(duration).Format(timeFmt))
 		if from.UTC().Add(duration).After(time.Now().UTC()) {
 			clt.CWIdle = false
 			clt.CWBusyUntil = from.UTC().Add(duration)
diff --git a/cron.go b/cron.go
index 24a1bbb..ed34600 100644
--- a/cron.go
+++ b/cron.go
@@ -6,6 +6,7 @@ import (
 	"time"
 
 	//"github.com/robfig/cron/v3"
+	"github.com/tidwall/pretty"
 	"gopkg.in/robfig/cron.v3"
 )
 
@@ -98,6 +99,17 @@ func cronSaveClients() {
 
 	b, err := json.Marshal(clts)
 	logOnError(err, "cronSaveClients : Marshal")
-	log.Printf("cronSaveClients : %s\n", string(b))
+
+	pb := pretty.Pretty(b)
+	log.Printf("cronSaveClients :\n%s\n", string(pb))
+
+	err = ioutil.WriteFile("./clients_new.json", pb, 0644)
+	logOnError(err, "cronSaveClients : WriteFile")
+
+	err = os.Remove("./clients.json")
+	logOnError(err, "cronSaveClients : Remove")
+
+	err = os.Rename("./clients_new.json", "./clients.json")
+	logOnError(err, "cronSaveClients : Rename")
 
 }