I have a dip tube in my bucket so I get all but about 4 ounces of stuff from my bottling bucket.
What that means in my case is about another 6 pack of beer- 54 bottles instead of 48.
And the biggest thing about a dip tube is that there is no need to tilt to get the last few dregs of beer. It is easy to make, all you need to do is find a drilled stopper (or drill your own) that fits in the back part of your bottling bucket spigot (I got mine from my lhbs) then you need to find a tube that fits on the hole...It could be a piece of bent copper tubing, it could be the body of a ballpoint pen, it could even be a bent piece of racking cane....I made my latest one out of broken racking cane that I heated and bent over an alcohol spirit lamp, heating and cooling until I got the right bend. (One tip, bend it until the back part of the bottom of the tube touches the bottom of the bucket, leaving a tiny gap in the front for the beer to flow through.)