I want to work on stuff for my portfolio but here is my dilemma. I work two jobs so I work on my portfolio on the weekends, right now I have 2 other opportunities that just came up. One is working with an old friend on a new project, but in the past none of our other projects ended up getting completed but some work is still there to show. The other is a chance to do some work for a company that has pitched a project and just needs to have an alpha made before it is determined to be a go or not. Neither are paying, but I only have so much time in a day. Both would allow me to rig and create tools. So the question is do I pick one of those, or even just pick neither of them and stick to tools and rigging on my own. Oh and I have to fit a Rigging Dojo session in there too somewhere.:?:
Tough call. I vote you do the one thing (single tasking, ftw) that interest you most.
In my opinion, the best option here is to focus on your own portfolio.
Working for a company that does not offer pay, unless you have faith in the project (as in, it’s something you’d put on your resume and can show off on your portfolio), just makes you spend your very precious time on work that might not be entirely beneficial to your own portfolio development.
Working for a friend, well, just never seems to work out for most people unfortunately.
Good luck.
Learning to say no to things is a great skill to cultivate as well. 
I’m like you with a bunch of side projects always on the go, and every few months I get stressed out of my mind, start resenting everything I am trying to do and then suddenly remember that I can drop some of the extra things.
Also, you might enjoy this blog if you don’t know it. Right now he is on a great kick with a series about deliberate practice: If You're Busy, You're Doing Something Wrong: The Surprisingly Relaxed Lives of Elite Achievers - Cal Newport
Another great book on the art of saying no and quitting is “The Dip” by Seth Godin. You don’t have the resources to do everything and it has a framework for thinking about which ones to pick so that you can make an awesome impact on the things you are doing.
Great advice Chris.
I will say that depending on the timing you could pick the work with your friend as your Rigging Dojo session. Just an Idea if the work would be something you could use as a base for your class with us.
Say no to the other project, 99% certain it will be a time sink and when you look back on it you will wish you had done something else.
Other wise, Rigging Dojo will require your free time and focus in order for you to get through it and make it worth your time.
Thanks for the advice gentlemen, it has helped immensely.:D:
Hey I am new here. I saw your discussion. Thanks for discussing this topic.