diff --git a/vimrc b/vimrc
index cc54002..0d4ebd4 100644
--- a/vimrc
+++ b/vimrc
@@ -46,7 +46,6 @@ set novisualbell
 set noerrorbells
 set nobackup
 set noswapfile
-set clipboard=unnamed
 set ttymouse=sgr
 set mouse=a
 set mousemodel=popup_setpos
@@ -80,6 +79,12 @@ map <up> <nop>
 map <down> <nop>
 map <left> <nop>
 map <right> <nop>
+imap <up> <nop>
+imap <down> <nop>
+imap <left> <nop>
+imap <right> <nop>
+
+nmap <silent> ,/ :nohlsearch<CR>
 map <c-t> <esc>:tabnew<cr>
 " Select just-pasted text:
 nnoremap <Leader>0 `[v`]
@@ -114,7 +119,7 @@ map <Leader>* :call RequestGrep()<CR>
 map <Leader>8 :call RequestGrep()<CR>
 
 " vim-markdown configuration:
-let g:vim_markdown_conceal = 3
+let g:vim_markdown_conceal = 1
 
 " Command-T configuration:
 let switchbuf="usetab"
diff --git a/zshrc b/zshrc
index a14b687..83b0872 100644
--- a/zshrc
+++ b/zshrc
@@ -129,6 +129,8 @@ git config --global alias.br branch
 alias sysc="systemctl"
 alias hib="sudo systemctl hibernate"
 alias dcd="docker-compose -f docker-compose.yml -f docker-compose.development.yml"
+alias tmkp="tmux kill-pane"
+alias tmkw="tmux kill-window"
 # TODO add wg
 
 # recursive grep with line numbers and colour, ignoring binary files: