How can I make proper sandwich slices of home-made bread? I like baking my own bread and do it quite often, yet to fill our family lunch boxes we still resort to professional baked bread. The main and maybe the only reason is that we can't seem to slice our own baked bread as thin as you like to fit in a lunchbox. 
We could of course buy an electric bread slicer similar as the one you'll find in your local supermarket, but that is quite some overkill. 



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I have tried it many times, even with very sharp knives, but I never managed to get a slices smaller then 1 cm in thickness. 
Is there some technique or device that enables proper slices of home-made bread?
You can buy a home bread slicer - and you can also make one.


  "My little invention works on the same principle as a carpenter's miter
  box (as a matter of fact, I got the idea while watching a carpenter
  friend cut some miter joints). The only difference is that my device
  was made specifically for slicing homemade bread. Just slide a loaf
  into place, position the blade of a long, sharp knife in the slots,
  and you can't help but cut straight and true." - John Shell, Mother Earth News March/April 1978