Pack your bag with everything you need. Then remove half of it. Clothes are heavy and of no use on a honeymoon anyway.
Take a stretchy elastic clothes line (with hooks, not just suckers), so you can wash the 3 or 4 garments you did take every couple of weeks when they
need it.
You need only one, 1,
one, ONE! pair of shoes. These don't need to be packed, because you're always wearing them.
(you wife may need 2x or more pairs though, DO NOT allow these to be placed into your luggage).
If you are buying beer glasses, and *really* like a particular glass, buy 3x of them, because that'll be the one that breaks.
The ones you bought after a few beers, but are scratching your head over a bit the next day - those will never break.
Or carry them onto the plane with you, this seems to be the safest method. But watch-out for the arse-hats who jam their oversized hard-shell carry-on into the locker.
Be ready to discard things. You can buy a pair of jeans anywhere, but that
pair of Leffe Royale gold-rimmed quaffing goblets *FROM YOUR HONEYMOON*, now that's special.
On a more serious note: If you see something you like, and can afford - buy it. The more you like it, the lesser the chance is you will see it cheaper/better later, it's not like here where
every ******* shopping centre is just riddled with chain-stores, selling the same shit. Even with an in-toilet exchange rate, chances are stuff is still cheaper than here.
If you can be more specific about your itinerary, maybe we could provide some sage advice.