The other thing to consider is that garage door openers operate on radio frequencies and while newer openers are better, a garage door can be opened by a different opener.

In loss there are two types of issues, frequency and severity.  

Plus, I didn’t like the “hit-and-miss” frequency of receiving the leads…I also decided that once I had all the marketing in place that I could think of… If I still needed leads, then I would give it a try.

Cold weather heat pumps use better (scroll) compressors with inverters to reduce the frequency of thaw cycles.One of the most promising newer ideas for cold-weather is a Canadian designed heat-pump where the compressor sits inside and just the coil and fan assembly sites outside ... this eliminates the freeze up and allows prolonged operation at low (sub-freezing) temperatures.Even in our nasty winters where we will have a week or two where temperatures do not climb above -20C and we are reliant on ancillary heat, the heat pump still comes out ahead over the entire heating season.  

The Z-wave operates at a lower frequency so it is more reliable.

I look at crime maps online and percentage of violent to non-violent crimes and frequency trends.

BP has already had a big impact on me recently, especially regarding my decision with the FB mastery program but I wont get into the details of that here.I am looking forward to beginning real estate investing as a business through wholesaling and flipping with the goal of increasing the frequency and project size until passive income properties can enter the picture.

Of course, there is a thin grey line between the two and some folks do report the proceeds of their flips as capital gains {i.e. they took 1.5-3 years to rehab (and stabilize)the property}, but if you turnover any volume or at shorter frequency your proceeds will be taxed as income.

In both lists, you'll need to have a large enough list and many, many touches (frequency of contact).

What is your bid frequency?