"Price is what you pay. Value is what you get." - Warrent Buffett
Many of us provide a service. We do so because we wish to help others. However, we too must eat and so must be rewarded for our talents. This is a simple truth.
PayPal is providing a convenient way for us to collect fair remuneration at the time of service. It's called PayPal Here. The promotional video below gives you the highlights in a more entertaining manner than I can in words alone.