title: cbind two lists of data.frames to a new list
body: <p>I have two lists of data.frames. Both lists have the same length and contain fitting data.frames in their according list elements.
  So the scenario looks like this</p>
  
  <pre><code>dfa = data.frame(a=1:3, b = letters[1:3])
  dfb = data.frame(x=runif(3))
  a = replicate(3, dfa, simplify = FALSE)
  b = replicate(3, dfb, simplify = FALSE)
  </code></pre>
  
  <p>One obvious solution is:</p>
  
  <pre><code>lapply(seq_along(a), function(i) cbind(a[[i]], b[[i]]))
  </code></pre>
  
  <p>But I was wondering if their might be a better solution.</p>