I am currently building an app that will weed out all time wasters and only let the real clients through.... lol
This is probably one of those "age old questions" that will never really be answered. As for the Skype and other such tech options, they are hit and miss, mainly in how efficient you are personally with the software or apps. But be ware, they is now a new scam, or at least for me, that I thought sounded so novel to help the providers. They said I have to go to a webcast and do a little chat with them. Sounded logical, but then they wanted to pay 25 or 50 upfront to get on, and that is where I knew it was a fake, pluss the price was so low and for how ever long I wanted, but enough of this and it taints options that you are trying to do.
Now for something different that has my attention, was a provider to had some videos on her web page, it has my attention. She provides both body rubs with full service, and if she ever were to work late night, I would be all over it. But till that day....
Just my .02 cents worth