Their or There?

[Warmtoast]

Many years ago I was taught that when writing English that:

Each pronoun agrees with their antecedent.
Just between you and i case is important.
Verbs has to agree with their subjects.
Watch out for irregular verbs which have crope into our language.
Don’t use no double negatives.
A writer mustn’t shift your point of view.
When dangling, don’t use participles.
Join clauses good, like a conjunction should.
Don’t write a run-on sentence you have to punctuate it.
About sentence fragments.
In a letter themes reports articles and stuff like that we use commas to keep a string of items apart.
Don’t use commas, which aren’t necessary.
Its very important that you use apostrophe’s right.
Don’t abbrev.
Check to see if you have any words out.
As far as incomplete constructions, they are wrong.
Never use a preposition to end a sentence with.
It is important to never ever under any circumstances split an infinitive.
The active voice is preferred.
Use of the passive voice is to be avoided.
Eschew obfuscation.
Never use a long word when a diminutive one will do
Last but not least, avoid clichés like the plague.

The English language is so illogical as in the examples below

The market garden was designed to produce produce.
The city tip was so full that it had to refuse more refuse.
In the boat, a row erupted amongst the oarsmen about how to row.
The nurse wound the crepe bandage around the wound.
Dessie decided to desert his dessert in the desert.
Chloe was too close to the door to close it.
When Ted saw the tear in the painting he shed a tear.
How can I intimate my thoughts to my most intimate friend?
Sherrie shed her shoes in the shed.
In terms of weight lead is in the lead.
Since there is no time like the present, he thought it was time to present the present.
When the stars are out they are visible, but when the lights are out, they are invisible.
Why do our noses run but our feet smell?
I did not object to the object.
Freddie filled in his form by filling it out.
Why do performers recite a play, yet play at a recital?
I went up to university in the down train.