Marijuana does not do damage like nicotine from cigarettesIt's all about frequency of use.  

Google youtube and septic tank pumping frequency.

I recommend frequency on prospecting for sites to publish your content and look for relevant places to post.Over time the compounding of content on your site and your link development efforts will drive up your leads which come from your site for free (or your cost to build content/links) as well as your AdWords costs will go down due to Google's QualityScore.

Review Page 3 of IRS Publication 598, which states: “Business activities of an exempt organization ordinarily are considered regularly carried on if they show a frequency and continuity, and are pursued in a manner similar to comparable commercial activities of nonexempt organizations.†An example is given in the publication.

I lifted this out of a BP post.The need for them to secure renter's insurance.In the event of a tropical storm or hurricane watch or hurricane warning, who is responsible to install storm shutters and how far ahead of time etc...Operation and frequency of the sprinkler system - only for SFR properties.

I don't see a need for much past the loan amount, interest rate, payment amount & frequency.

Some custodians have stopped accepting single member LLCs as IRA investments all together.The frequency of profit distributions should be spelled out in the LLC's operating agreement, I would consult with an attorney relative to any requirements that may be in place.It should also be noted that there are special provisions in place when a multi-member LLC with IRA investors attempts to secure financing for purchases.

Cost recovery issues (frequency of cleaning, repairs & maintenance, etc), insurance, etc.

Then they bill the cleaning company if they have to spend time cleaning something that should have been done in the first place.As far as frequency I think it depends on your business. 

I also sent SMS frequency to ON under notifications.