Vinegar!
Take some white/clear vinegar (about 1 teaspoon) and mix it with a small cup of water.
Next take a piece of fabric, cotton is best, maybe a clean bed sheet if you have any and place this over the crease, next spray the solution onto the cotton sheet making sure that the area underneath the sheet where the crease is is covered, and then iron (with no steam), the creased area.
The vinegar will remove any sign of the packing crease and the sheet will protect the expensive garment from water damage.
Make sure your iron is not to hot as to scald and burn the fabric, check the label first.
Laura, September 2009