Outline: What happened to Caylee.
Going back thru this thread, I like the scenario that BondJamesBond proposes, combined with some of the additions by JWG, but I do not consider it likely that KC would rearrange the body away from the As, and so did not bag or dump it on 19th. I accept the need to test various aspects of any theorised scenario against the details we do know, especially from ping details and computer forensics, and other known facts as well. I hope my scenario does not have any aspects that the known facts exclude.
The suggestion that KC was using Lees place is compelling, as is the likelihood that critical phone calls involved seeking, but failing, to find willing baby sitters. I wont concede that there is compelling evidence to support the use of chloroform, but misuse of patent or prescription medicine is a possibility (a possibility, but not essential for my scenario to work).
I think, on the afternoon of 16th, before KC arrived at ALs, Caylee did end up in the trunk of KCs car (drugged or not), gagged and bound. KC had been repeatedly thwarted in her efforts to arrange a baby sitter. She finally lost it and decided to throw Caylee in the trunk and do without a sitter. Drugs may, (or may not), have been administered as Bond suggests, but if KC did THINK she found Caylee dead at 7:20 pm 16th, then she misdiagnosed, and Caylee was still alive. Perhaps in a coma, and close to death, but alive. I think Caylees actual TOD was close to mid-day 17th. I do not think KC rearranged, or dumped the body on 19th. I think KC was keeping away from her own car. Perhaps sussing out a dump site or establishing an alibi with CS?
I think the visits to the Anthony house and backing in on 17th and 18th were to possibly bury Caylee, or perhaps fake a drowning or whatever. KC could see nothing was really practical or believable. At some stage the body was placed in a laundry bag, but that did little to help with decomposition leakage, smell etc. Finally on her third visit (20th), KC decided that the body needed to be bagged in plastic to contain decomposition. She may have dumped the body as she left that day, or just left it in the trunk until dumping it 23rd or 24th. I can not decide. I also have a sneaking feeling that she may have been contemplating some sort of incineration of the body, or even the car with the body inside, but thats a guess. If that was a thought then the thought went when GA nearly caught her and took the gas cans back. She would have dumped the body immediately after that incident if she still had it.