Sign up for my "irregular" newsletter
The thing to notice about that title is the word irregular. I hate spam mail the only spam I tolerate is the meat variety, and even then I have to be pretty hungry for that to tempt me.
I only send out a newsletter when I have something newsworthy. So you won't be getting bombarded with weekly messages from me. I tend to send out a newsletter when I have reviewed something amazing that I need the whole world to know about. Or for instance when I have created a new e-stim electrode that will blow your socks off.
So feel free to sign up to my newsletter, it is compliant with anti-spam regulations, and you are in total control, you can unsubscribe at any time. I don't pass on e-mail addresses to other companies, but I do use MailChimp to manage my list and to create newsletters.
I hope you do decide to sign up and I am sure you will enjoy the newsletters when they arrive.