There are a lot of services a sub provides for her Mistress that can't be done on-line. For example - run me a bath, get me some tea, polish my nails, pleasure me without touching me with your hands, wait here for me on your hands and knees, I'm going to tie you to the foot of the bed, and so on and so on.

I can think of several on-line treats, which I'm not going to detail - I don't want to spoil the surprise - but what are some of the best - and worst - things to do or have done on-line?