So...ask her to wear some when she comes back? Maybe also (if you haven't already) get in shape and improve your physique or bodily appearance through exercise and dieting.

Careful; this may not be a girls’ trip. She might be banging some other dude. Keep an eye out.

Yet another strike against household chores! Lazy people who let others do the grunt work are the most ignorant and most happy.

"With her girlfriends" says enough dude, she's gonna bang random dudes at the bar at best

Either wife is bi or she’s going to pick up or meet some guy on her “vacation.” If she shows up as pregnant in a few months get a paternity test so you don’t get screwed.

Thongs look better under certain outfits... What's the problem here?

i can see where your wife is coming at; vacation is always awesome time to buy cute outfits, bikinis, panties for the new destination. not saying you want the world to see them, but sometimes you're out looking for a specific dress, skirt, shorts etc, then you think of your panties at home and well you're already out and about might as well stop at another store for panties and bras, she probably also got a matching bra(s) for said panties. maybe instead of worrying immediately if you don't have other reasons to, bring up her panties and see if she will model em for you

Time for a Panty Raid Party! Bring the camera to capture the action (as evidence)!