I've been using an extra 5 gallon bucket and filling it up halfway with 1/2 oz of StarSan. I also keep a spritzer on hand filled with it too- that's very handy. I usually pour or siphon the contents of the big bucket into the larger pieces (fermenter, carboy, etc... splash around for a minute or two, then pour back into the bucket and cover them. Then place all the small items (airlock pieces, hoses, autosiphon, hydrometer, etc...) I even set my wort chiller in there too. Probably not necessary, but I figure it doesn't hurt and I want to make sure I put 100% effort into sanitizing.
Thanks for bringing up this question as I am always on the lookout for more convenient sanitation methods. Some people use a long wallpaper tray for sanitizing the various small items and that looks like a good idea too.