diff --git a/.vimrc b/.vimrc
index 3d9a00c..2ebd9a2 100644
--- a/.vimrc
+++ b/.vimrc
@@ -10,6 +10,7 @@ set shiftwidth=4
 set autoindent
 set mouse=c
 set clipboard=unnamedplus
+set foldmethod=marker
 
 autocmd VimResized * wincmd =
 autocmd BufNewFile,BufRead .*_aliases set syntax=sh
@@ -62,7 +63,7 @@ map <S-Enter> O<ESC>
 
 let mapleader="\<Space>"
 nnoremap <leader>e o<ESC>
-nnoremap <leader>ff :set foldmethod=marker<CR>
 nnoremap <leader>f za
+nnoremap <leader>m :call cursor(0, len(getline('.'))/2)<CR>
 nnoremap <leader>p :LLPStartPreview<CR>
 nnoremap <leader>s :set syn=sh<CR>
diff --git a/UltiSnips/all.snippets b/UltiSnips/all.snippets
index 1de0f8b..fb71ed2 100644
--- a/UltiSnips/all.snippets
+++ b/UltiSnips/all.snippets
@@ -15,3 +15,12 @@ endsnippet
 snippet ltx "LaTeX" i
 LaTeX
 endsnippet
+
+snippet evr "Var with escaped quotes" w
+\"$${1:var}\"
+endsnippet
+
+snippet vr "Var with quotes" w
+"$${1:var}"
+endsnippet
+
diff --git a/UltiSnips/sh.snippets b/UltiSnips/sh.snippets
deleted file mode 100644
index 4e87e22..0000000
--- a/UltiSnips/sh.snippets
+++ /dev/null
@@ -1,8 +0,0 @@
-snippet evr "Var with escaped quotes" i
-\"$${1:var}\"
-endsnippet
-
-snippet vr "Var with quotes" i
-"$${1:var}"
-endsnippet
-
diff --git a/UltiSnips/texmath.snippets b/UltiSnips/texmath.snippets
index 5120925..b0ba40a 100644
--- a/UltiSnips/texmath.snippets
+++ b/UltiSnips/texmath.snippets
@@ -1,9 +1,13 @@
-snippet al "Align (math)" b
+snippet ali "Align (math)" b
 \begin{align*}
-	$0 \\\\
+	$1 &= $2 \\\\
 \end{align*}
 endsnippet
 
+snippet al "Align line" b
+&= $2 \\\\
+endsnippet
+
 snippet pwf "Piecewise function" b
 \[
 	${1:name} = \left.
@@ -45,3 +49,15 @@ endsnippet
 snippet thus "Therefore" b
 $\therefore$ 
 endsnippet
+
+snippet rd "Roman d" i
+\mathrm{d}${1:x} $2
+endsnippet
+
+snippet xax "x-axis" i
+$x$-axis 
+endsnippet
+
+snippet yax "y-axis" i
+$y$-axis 
+endsnippet
diff --git a/aliases/.209_aliases b/aliases/.209_aliases
index 6d3fe8c..8f1a970 100644
--- a/aliases/.209_aliases
+++ b/aliases/.209_aliases
@@ -1,8 +1,10 @@
 alias ll="ls -l"
-alias 209="$cd_school/209"
-alias 9r="$cd_school/209/mokkar"
-alias l4="$cd_school/209/mokkar/lab4"
-alias a1="$cd_school/209/mokkar/a1"
+
+cd_209="d ~/Documents/School/209";
+alias 209="$cd_209"
+alias 9r="$cd_209/mokkar"
+alias l5="$cd_209/mokkar/lab5"
+alias a2="$cd_209/mokkar/a2"
 # alias cdf="ssh -t mokkar@cdf.utoronto.ca '. ./.bashrc; bash -l'"
 alias cdf="echo \". ./.bashrc\"&& ssh mokkar@cdf.utoronto.ca"
 mkex() { chmod 700 $1 ; }
diff --git a/aliases/.bash_aliases b/aliases/.bash_aliases
index 60369bf..0188f68 100644
--- a/aliases/.bash_aliases
+++ b/aliases/.bash_aliases
@@ -22,10 +22,6 @@ d() { cd "$@" && ls -a ; }
 cd_up() { d $(printf "%0.s../" $(seq 1 $1 )) ; }
 alias "d."="cd_up"
 alias cdd="d ~/Downloads"
-alias dsnp="d ~/.vim/plugged/vim-snippets/UltiSnips/"
-alias csnp="d ~/.vim/UltiSnips/"
-vdsnp() { vi ~/.vim/plugged/vim-snippets/UltiSnips/"$1".snippets ; }
-vsnp() { vi ~/.vim/UltiSnips/"$1".snippets ; }
 
 # apps
 ok() { okular $1 ; }
@@ -43,3 +39,12 @@ alias r=". ~/.bashrc"
 # redshift
 rs(){ redshift -O $(($1 * 1000)) ; }
 alias rx="redshift -x"
+
+# UltiSnips
+alias dsnp="d ~/.vim/plugged/vim-snippets/UltiSnips/"
+alias csnp="d ~/.vim/UltiSnips/"
+
+alias vsptm="vi ~/.vim/UltiSnips/texmath.snippets"
+vdsnp() { vi ~/.vim/plugged/vim-snippets/UltiSnips/"$1".snippets ; }
+vsnp() { vi ~/.vim/UltiSnips/"$1".snippets ; }
+
diff --git a/aliases/.my_pc_aliases b/aliases/.my_pc_aliases
index 2e1d99d..2ec9ba4 100644
--- a/aliases/.my_pc_aliases
+++ b/aliases/.my_pc_aliases
@@ -1,5 +1,5 @@
 if [ "$(whoami)" == "kevin" ]; then
-	alias vbn="cvlc --loop ~/Downloads/brown-noise.mp3"
+	alias vbn="cvlc --loop --alsa-gain 1 ~/Downloads/brown-noise.mp3"
 
 	alias mt="ok ~/Documents/School/calc-textbook.pdf"
 	alias clc="gcalccmd"
diff --git a/aliases/.school_aliases b/aliases/.school_aliases
index ae0241c..381bc3d 100644
--- a/aliases/.school_aliases
+++ b/aliases/.school_aliases
@@ -28,4 +28,5 @@ cptp() {
 
 # 136
 alias 136="$cd_school/136"
+alias 136l="$cd_school/136/lecture"
 alias pr2="$cd_school/136/par/2"