diff --git a/common/.bashrc b/common/.bashrc
index 9c500f0..7c318f6 100644
--- a/common/.bashrc
+++ b/common/.bashrc
@@ -4,8 +4,8 @@
 
 [[ $- != *i* ]] && return
 
-export HISTSIZE=2000
-export HISTFILESIZE=2000
+export HISTSIZE=5000
+export HISTFILESIZE=5000
 export PATH=$HOME/bin:$PATH
 
 colors() {
@@ -94,6 +94,7 @@ fi
 
 unset use_color safe_term match_lhs sh
 
+alias cat='cat -v'
 alias cp="cp -i"                          # confirm before overwriting something
 alias df='df -h'                          # human-readable sizes
 alias free='free -m'                      # show sizes in MB
@@ -103,7 +104,7 @@ alias ...='cd ../../'
 alias more=less
 alias mc='. /usr/lib/mc/mc-wrapper.sh'
 
-xhost +local:root > /dev/null 2>&1
+#xhost +local:root > /dev/null 2>&1
 
 complete -cf sudo