I put my rubs back in to large shaker bottles that spices come in (like Tones for instance). I always shake out of the bottle, but I shake from the 'spoon opening'.
As a side note, this is one area I could really improve. I tend to often use pretty cheap spices, from the super market or Costco. Might be nice to use fresher or more high quality stuff.
On a side - side note, it just ocurred to me, I use a lot of Paprika! I need to invest in Paprika company stock, as well as paper towel company stock and Aluminum Foil company stock.