diff --git a/doc/ccollect.text b/doc/ccollect.text
index 4313669..1608c89 100644
--- a/doc/ccollect.text
+++ b/doc/ccollect.text
@@ -108,6 +108,10 @@ touch miniconfig/sources/testsource/summary
 # do the backup, twice
 CCOLLECT_CONF=./miniconfig ./ccollect.sh testinterval testsource
 CCOLLECT_CONF=./miniconfig ./ccollect.sh testinterval testsource
+
+# Let's see how much space we used with two backups and compare it to /bin
+du -s ~/DASI /bin
+
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 By the way: Cut and paste of the complete section above into your