Limit yourself to 2 purchases for the next six months, then quit thinking about your wardrobe. If you see something, ask yourself if it is worth giving up one of your allotted two items. If you are anything like me, you'll want to keep your options available instead of "squandering " them on what might be a passing whim.
If you don't use up your allottment before your holidays, you can always use your two purchases to buy something for, or during, your trip. Oh, and by the way, the reason 2 items is better than 1 is because it appears to be more generous and, theoretically, gives you more freedom. It's that illusion that makes the process seem reasonable and do-able instead of a drastic curb.
