Piet - why wouldn't you use Skype?

To the rest - When I needed extra help, or there was a bug on a theme/plugin. I contacted the author and got the bug fixed, he/she/it helped me via Skype.

If you are getting paid by client and client wants to do it via Skype...then you Skype.

I have NEVER given anyone admin access to any of my sites. and I will never do it.

Reputation is biased.

If you NEED to have full admin access then there is an issue there. You should be able to instruct your client on how to fix things. Think about this if you get paid by hourly rate.

So many developers inflate the time it takes to fix the issues/errors.