diff --git a/UltiSnips/javascript.snippets b/UltiSnips/javascript.snippets
index 70c248e..d522e78 100644
--- a/UltiSnips/javascript.snippets
+++ b/UltiSnips/javascript.snippets
@@ -12,6 +12,22 @@ snippet cl "console.log( ... )"
 console.log($0);
 endsnippet
 
+snippet cw "console.warn( ... )"
+console.warn($0);
+endsnippet
+
+snippet f "for (...)"
+for (let index=0; index < $1; index += 1) {
+	$0
+}
+endsnippet
+
+snippet fr "for (...)"
+for (let index=${1:0}; index ${2:<} $3; index ${4:+=} ${5:1}) {
+	$0
+}
+endsnippet
+
 snippet .fe "...forEach( ... );" i
 .forEach(($1) => {
 	$0
diff --git a/UltiSnips/markdown.snippets b/UltiSnips/markdown.snippets
index 871e9c4..fc340ac 100644
--- a/UltiSnips/markdown.snippets
+++ b/UltiSnips/markdown.snippets
@@ -8,14 +8,22 @@ snippet c "``` ..."
 endsnippet
 
 # latex
-snippet vec "vector"
+snippet vec "vector 1x2"
 \\begin{bmatrix} $1 \\\\ $2 \\end{bmatrix}$0
 endsnippet
 
-snippet mx "matrix"
+snippet vec3 "vector 1x3"
+\\begin{bmatrix} $1 \\\\ $2 \\\\ $3 \\end{bmatrix}$0
+endsnippet
+
+snippet mx "matrix 2x2"
 \\begin{bmatrix} $1 & $2 \\\\ $3 & $4 \\end{bmatrix}$0
 endsnippet
 
+snippet mx3 "matrix 3x3"
+\\begin{bmatrix} $1 & $2 & $3 \\\\ $4 & $5 & $6 \\\\ $7 & $8 & $9 \\end{bmatrix}$0
+endsnippet
+
 snippet lim "limit"
 \\lim{$1 \\to $2}$0
 endsnippet
diff --git a/init.vim b/init.vim
index 43ca850..3be6107 100644
--- a/init.vim
+++ b/init.vim
@@ -338,8 +338,6 @@ nnoremap <silent><space>cs :let @/=""<cr>
 nnoremap <silent><expr> <space>nh (&hls && v:hlsearch ? ':nohls' : ':set hls')."\n"
 " Focus on current fold, close the rest
 nnoremap <silent> <space>zz zMzvzt
-" exit from terminal insert mode with escape
-tnoremap <Esc> <C-\><C-n>
 " open quickfix window of TODOs
 nnoremap <space>td :grep -RE '(TODO\\|FIXME)' .<CR>:botright cwindow<CR>:echo len(getqflist()) 'TODOs'<CR>
 " sync highlighting from start
@@ -362,10 +360,6 @@ nnoremap <space>qh :chistory<CR>
 nnoremap <space>qp :colder<CR>
 nnoremap <space>qn :cnewer<CR>
 
-"}}}
-"   insert mode mappings {{{
-inoremap jjrg     <c-o>:reg<cr>
-
 "}}}
 "----------------------------------------------------------------------------}}}
 " #abbreviations {{{
diff --git a/spell/en.utf-8.add b/spell/en.utf-8.add
index 8610293..4cf01f0 100644
--- a/spell/en.utf-8.add
+++ b/spell/en.utf-8.add
@@ -180,3 +180,8 @@ mimetype
 thumbnailers
 Diagonalisation
 yah
+shopify
+Dropshipping
+Todo
+nodemailer
+nodejs
diff --git a/spell/en.utf-8.add.spl b/spell/en.utf-8.add.spl
index 0bf149f..9324bc2 100644
Binary files a/spell/en.utf-8.add.spl and b/spell/en.utf-8.add.spl differ