Simple function and mappings to close brackets automagically. In practice this shit is more irritating than helpful.

autobrackets.vim

" Auto-insert closing parenthesis/brace {{{2
" TODO: make bracket insertion a little smarter
" right now it gets in the way more than it helps
inoremap ( ()<Left>
inoremap { {}<Left>
inoremap [ []<Left>

" Auto-delete closing parenthesis/brace
function! BetterBackSpace() abort
	let cur_line = getline('.')
	let before_char = cur_line[col('.')-2]
	let after_char = cur_line[col('.')-1]
	if (before_char == '(' && after_char == ')') || (before_char == '{' && after_char == '}') || (before_char == '[' && after_char == ']')
		return "\<Del>\<BS>"
	else
		return "\<BS>"
endfunction
inoremap <silent> <BS> <C-r>=BetterBackSpace()<CR>
" Skip over closing parenthesis/brace
inoremap <expr> ) getline('.')[col('.')-1] == ")" ? "\<Right>" : ")"
inoremap <expr> } getline('.')[col('.')-1] == "}" ? "\<Right>" : "}"
inoremap <expr> ] getline('.')[col('.')-1] == "]" ? "\<Right>" : "]"
" }}}2