How can I reduce time and cost to create magic items?

According to the rules, creating magic items (like Wondrous items) takes a day per 1000gp item price and cost half the price.

In the Epic level handbook there is an epic feat called Efficient Item Creation that allows you to create 10000gp per day.

Are there other ways to reduce time taken, money cost or xp cost when creating magic items? I don’t care whether they are epic or not, and a bit of cheese can be allowed.