"Do's" and "don'ts" or "do's" and "don't's"?

I am making a list to my children telling them what are some of the things they should do and shouldn't. Under one side is "do", and the other is "don't".

Would I write "do's" and "don't's"?

Cause the two apostrophes look horrendous, and I'm not sure that is correct or not. How is it written?

The following nGram suggests that dos and donts, do's and don'ts, and do's and don't's are all used, but it appears that do's and don'ts takes the cake.

A quick search suggested that capitalizing all but the s is also fairly popular:

DO's and DON'Ts

DOs & DON'Ts

that would be appropriate.

Do's and Don't's

seems correct but because of the plethora of apostrophes in the latter word, I prefer

Do's and Don'ts.

You can see a nice discussion about this subject on this blog post (When apostrophes go bad: Do's and Don'ts).

Although "Do's" and "Don'ts" seem to be the popular usage, it would be correct to write "Dos" and "Don'ts" for a couple of reasons:

• It is a plural form of the word you are trying to express, not possessive;
• It is not a contraction either — the contraction "do's" would mean "do is";
• "Don'ts" is the correct plural form of "don't" so "dos" would be the correct plural form of "do".

"Things to DO and NOT DO".

"Do's and Don'ts" seems to be preferred, but let's be honest it's not an elegant construction either way.