you cant once they are in there
The first thing to do in order to remove creases from leather handbags is to hang them for over a day. A cold iron can be used in case the results are needed urgently.
Iron the tie beneath a damp towel, this will remove the creases
the oils are in the leather; a cleaner will remove dirt particles on the leather, but won't touch what is embedded in the leather. Try advleather.blogspot.com
Buy clean leather.
how do you remove scuff marks from a smooth leather purse
The best way to remove motor oil from leather is to use leather cleaner. You can also try to use Oxy-clean.
somehow
how can i get diesel fuel off my leather jacket
With your tongue.
vinegar
To remove diesel from leather shoes try rubbing the leather with dry baking soda. It will be important to remove the moisture first.
How to remove mold from black couches