Also, I have found Odesk very helpful when our sales people ask for custom demos for clients. Instead of distracting our team I hire someone on Odesk to reskin our demo app. The best part is I know exactly how much that demo costs and like to let sales know so they can decide for their self if a demo is warranted in each situation.
As for personal tasks, I love using the concierge service attached to my credit card. Just recently I had them research all the candidates up for local election for me, find out how to return a jacket I bought on a business trip across the country, and suggest some recipes for a halloween party.
I have a running list of my favorite things I have sent to my concierge on Quora: https://www.quora.com/Concierge-Services/What-are-some-good-...
I also have a running list on my blog: http://delegnation.com/
A presentation I did at a Product Camp recently about using outsourcing to support product management: http://www.slideshare.net/russjhammond/product-camp-nashvill...