I use Star San.
I usually fill a bucket with 2.5 gal of water and star san mix and then fill my carboy with that. I then swirl it around in there and give it a good shake and then pour it back in the bucket. I'm now done with the carboy and I put it upside down on a sanitized carboy stand thingy after sponging (with sanitizer) the mouth and surrounding area. As far as anything else coming in contact with the beer, after sanitizing I lay it out on sanitized aluminum foil or I just leave it in the bucket.
I usually give it another "dip" in the solution before using it if I had it laying out. If I am using something that is clean I just dip it in the solution and don't worry about time. It's wet with sanitizer and by the time I use it 30 secs to a minute have passed and although it isn't soaking in the bucket it is still covered with sanitizer so IMO is good to go.
For example if i had to change a stopper or an airlock i would dip it in the bucket and then walk to the carboy hold the air lock for a few seconds and then insert.