Abbreviate clock time when immediately connected with figures to a. m. and p. m.
Prefer for example to e. g.
Prefer namely to viz.
Prefer that is to i. e.
Write English money £5 4s 6d, without commas.
Abbreviate the months thus:
- Jan.
- Feb.
- March.
- April
- May
- June-Gen.
- July
- Aug.
- Sept.
- Oct..
- Nov.
- Dec.
Use don't only when you may substitute do not. Perhaps you have seen the advertisement which reads: "Hand Made Tobacco Don't Bite the Tongue."