This is my method, I take all my old bottles and toss them in a garbage can full of water and cleaner. Then I run each one under the tap to clean the outside and then use my water jet bottle washer on the sink. If there is still stuff in the bottle I use a bottle brush.
After they are all thoroughly rinsed they go in a big rubbermaid bin.
Next I have a pump style bottle sprayer ontop my bottle tree I fill with starsan. I give every bottle 3 pumps and set it on the tree.
I have a drink while they drain.
Then I put my auto-syphon with botteling wand in my demijohn half way, and plunk the wand in a bottle to trip the filling valve. I hold it half way in to not disturb the lees. When it starts to fill I slowly lower the wand in on an angle until it rests on the bottom. I then secure the hose to the basket so I don't knock the wand and disturb the lees.
I know everyone is going to chime in about how I should really rack it before bottling to avoid sucking up gunk by accident....but I've done it this way for ages and I'm not about to change.
Alright, so I set up about 20 bottles vertical in a rubbermaid bin so any spillage won't result in the loss of half my house. I then fill up each bottle, then top up each one to the correct amount. Then I set the wand sideways in an empty bottle and cork one batch.
Then I restart with another 20 bottles.