Here is a straightforward look at this topic for Malachain.
When goods are sold across borders, buyer and seller must agree who pays for transport, insurance and customs duties, and at which point responsibility for the goods passes from one to the other. Incoterms are a set of standard three-letter rules that answer those questions in a single phrase, so both sides understand the deal without lengthy negotiation.
Some terms place almost all the work on the buyer, who collects the goods from the seller’s premises, while others require the seller to deliver to the buyer’s door with duties paid. Choose a term that matches what each side can realistically handle, state the exact place named in the rule and the edition used, and make sure your freight forwarder agrees.
The most useful step is usually the first one. Pick a single suggestion, try it for a couple of weeks, and then decide whether it is worth keeping. Small, steady improvements last longer than ambitious plans that are hard to maintain once everyday life gets busy again.
It also helps to talk the subject through with friends or colleagues who have tried something similar. Their experience points out the details that guides leave out: how long things really take, which costs were unexpected, and which shortcuts turned out to be a mistake.
There is more to learn on this subject, and the linked website goes into greater depth. Treat this article as an introduction rather than the final word, and check any important decision against up-to-date, reliable sources before relying on it.