We're going to be brutally honest here for one second: nobody needs five pairs of jeans for a one-week trip. Seriously, there's just no point. Grab yourself a few clothes that mesh well with each other so that you can have varied outfits that look nice, buy yourself a few clothes at your destination if you're into that, and rest assured that you will be able to do laundry at your destination.
That's why we often say that a backpack and a carry-on suitcase will do pretty much anyone just good for a regular vacation. You're just going to have to trust us on this one.