Conducting brain stimulation at home Given articles like this, and their associated research {1}, I am developing an interest in transcranial magnetic stimulation (TMS), transcranial direct current stimulation (tDCS), and other forms of brain stimulation as they appear like they may have. I might be interested in trying it at home.

As a result I would like ask for evidence to help me answer one or more of the following questions: 


What is the best headset for brain stimulation that a normal person can buy or build? I am aware of these, but would like the opinion of an expert.
What are the best online communities, or sources of information for conducting brain stimulation at home?
How should I engage in brain stimulation at home? A guide, or link to one would be appreciated
Is it safe to conduction brain stimulation at home? If there is evidence that one type of brain stimulation, and/or headset is safe then please provide evidence of this.


Reference

{1} Santarnecchi, E., et al. (2016). "Individual differences and specificity of prefrontal gamma frequency-tACS on fluid intelligence capabilities." Cortex 75: 33-43.
At the moment, there are no TMS/tDCS protocols that were approved for the home use in USA or EU. So, please, don´t. Fortunately, TMS devices are quite expensive and cannot be used by a single man. tDCS is easier, but decent companies on the market like NeuroConn or Neuroelectrics will not sell an equipment to a private person.
Foc.us device, by the way, was proved to impair the memory [1].

1.Steenbergen, Laura, et al. "“Unfocus” on foc. us: commercial tDCS headset impairs working memory." Experimental brain research (2015): 1-7.