Freelancer start working in pairs

Very often I hear answers from freelancers:
1) Busy
2) I can do tomorrow / in a week / month.
3) Must refuse, all the money still will not earn.
4) There is not so much free time.
5) I do not have time to do in time.
6) With this did not work / no experience.

You will be less likely to encounter such problems if you have a partner in your own specialty, this simple move will make your life more pleasant and softer. In this case, I don’t mean a pair of programmer + designer pairs (although I wouldn’t refuse to have more such pairs either), but I mean pairs for example of a wordpress programmer + wordpress programmer.
Let's look at the advantages of a pair of freelancers compared to one:

1) You can do twice the work for the same time (this is the case when I need to buy 100 hours of programmer per week).
2) Your experience is wider and you can do work on which experience each of you lacks.
3) You can get sick or go on vacation, and your partner will deal with your regular customers or simply cover you when you can not do the work yourself.
4) You can take a job when you are already busy and your partner is free.
5) At the moment when you have a deadline you can help your partner manage to deliver the project on time.
6) To work in a pair, in any case you will have to start an issue tracker, and this is another +1 step towards the evolution of a freelancer.
7) To work in pairs, you will have to use version control systems (svn, git), you do not know how many programmers are not able to use them.
8) With the pair approach, you will earn more and work more efficiently.
9) At some point you will move from a couple to a freelancer.
10) Your customers will be less likely to hear from you.