diff --git a/shell/aliases.sh b/shell/aliases.sh
index d62b2362..b1a2a3a8 100644
--- a/shell/aliases.sh
+++ b/shell/aliases.sh
@@ -12,15 +12,44 @@ alias ....='cd ../../..'
 alias -- -='cd -'
 
 alias ln="${aliases[ln]:-ln} -v"  # verbose ln
-alias ls="${aliases[ls]:-ls} --group-directories-first"
 alias l='ls -l'
 alias ll='ls -la'
 
-alias pubkey='cat ~/.ssh/id_rsa.pub | y | echo "Public key copied to pasteboard."'
+# notify me before clobbering files
+alias rm='rm -i'
+alias cp='cp -i'
+alias mv='mv -i'
+
+alias gurl='curl --compressed'
+alias mkdir='mkdir -p'
+alias rsyncd='rsync -va --delete'   # Hard sync two directories
+alias wget='wget -c'                # Resume dl if possible
+
+alias pubkey='cat ~/.ssh/id_rsa.pub'
+
+alias yd='youtube-dl'
+alias ydm='youtube-dl --extract-audio --audio-format aac'
+
+# Always enable colored `grep` output
+# Note: `GREP_OPTIONS="--color=auto"` is deprecated, hence the alias usage.
+alias grep='grep --color=auto'
+alias fgrep='fgrep --color=auto'
+alias egrep='egrep --color=auto'
+
+alias mk='make'
+alias exe='exercism'
 
 # For example, to list all directories that contain a certain file: find . -name
 # .gitattributes | map dirname
 alias map="xargs -n1"
 
+o() { open "${1:-.}" }
+c() { cd "$1" && ls -l; }
 take() { mkdir "$1" && cd "$1"; }
 hex()  { echo -n $@ | xxd -psdu; }
+
+if command -v compdef >/dev/null; then
+    compdef o=open
+    compdef c=cd
+    compdef take=mkdir
+fi
diff --git a/shell/zsh/aliases.zsh b/shell/zsh/aliases.zsh
index e18143cb..764778e7 100644
--- a/shell/zsh/aliases.zsh
+++ b/shell/zsh/aliases.zsh
@@ -1,49 +1,12 @@
-#!/usr/bin/env zsh
-
 load shell/aliases.sh
+loadall shell/zsh aliases.zsh
 
+#
+autoload -U zmv
 
 zman() { PAGER="less -g -s '+/^       "$1"'" man zshall; }
-alias \?='since @$last'
-
-## Compilers, interpretors 'n builders #######################################
-alias mk='make'
-alias exe='exercism'
-
-## Redefined tools ###########################################################
-# Always enable colored `grep` output
-# Note: `GREP_OPTIONS="--color=auto"` is deprecated, hence the alias usage.
-alias grep='grep --color=auto'
-alias fgrep='fgrep --color=auto'
-alias egrep='egrep --color=auto'
-
 alias ag='noglob ag'
-alias gurl='curl --compressed'
-alias mkdir='mkdir -p'
-alias rsyncd='rsync -va --delete'   # Hard sync two directories
-alias ssh='ssh -C'                  # Compression for all ssh connections
-alias wget='wget -c'                # Resume dl if possible
-alias ydl='youtube-dl'
-
-## New tools #################################################################
 
 # Canonical hex dump; some systems have this symlinked
 is-callable hd || alias hd="hexdump -C"
 
-## Remote resources ##########################################################
-# URL-encode strings
-alias urlencode='python -c "import sys, urllib as ul; print ul.quote_plus(sys.argv[1]);"'
-# find conflicted dropbox files
-alias findc="find . -iname '*conflicted*' -type f -exec echo '\"{}\" ' \;"
-# Send to sprunge.us
-alias bin="curl -s -F 'sprunge=<-' http://sprunge.us | head -n 1 | tr -d '\r\n ' | y"
-# IP addresses
-alias publicip="dig +short myip.opendns.com @resolver1.opendns.com"
-alias ips="ifconfig -a | grep -o 'inet6\? \(addr:\)\?\s\?\(\(\([0-9]\+\.\)\{3\}[0-9]\+\)\|[a-fA-F0-9:]\+\)' | awk '{ sub(/inet6? (addr:)? ?/, \"\"); print }'"
-# View HTTP traffic
-alias sniff="sudo ngrep -d 'en0' -t '^(GET|POST) ' 'tcp and port 80'"
-alias httpdump="sudo tcpdump -i en0 -n -s 0 -w - | grep -a -o -E \"Host\: .*|GET \/.*\""
-# Make URL REQUEST shortcuts
-for method in GET HEAD POST PUT DELETE TRACE OPTIONS; do
-    alias "$method"="lwp-request -m '$method'"
-done
diff --git a/shell/zsh/completion.zsh b/shell/zsh/completion.zsh
index bf2b4fef..d798474c 100644
--- a/shell/zsh/completion.zsh
+++ b/shell/zsh/completion.zsh
@@ -116,12 +116,3 @@ zstyle ':completion:*:(ssh|scp|rsync):*:hosts-host' ignored-patterns '*(.|:)*' l
 zstyle ':completion:*:(ssh|scp|rsync):*:hosts-domain' ignored-patterns '<->.<->.<->.<->' '^[-[:alnum:]]##(.[-[:alnum:]]##)##' '*@*'
 zstyle ':completion:*:(ssh|scp|rsync):*:hosts-ipaddr' ignored-patterns '^(<->.<->.<->.<->|(|::)([[:xdigit:].]##:(#c,2))##(|%*))' '127.0.0.<->' '255.255.255.255' '::1' 'fe80::*'
 
-
-## Custom compdefs #######################
-
-compdef g=hub
-compdef o=open
-compdef take=mkdir
-compdef t=tmux
-
-autoload -U compinit && compinit