These are the bags you want for trousers:

https://www.amazon.com/gp/product/B003U6A3C6/ref=oh_aui_detailpage_o04_s00?


They make great sweater bags for your closet when you aren't travelling.

It's actually 0.6 oz which is less than a box of cereal... are you planning on climbing Kilimanjaro in button-downs??

I have a shirt folding size piece of cardboard in my wardrobe. When packing I fold the shirts I'm taking to the same size, then I slip them into a carrier bag from one of the big four supermarkets. That seems to keep them together nicely without the need for gadgets.

A gift for the man who has everything

Bring lots of underwear. If I wear an undershirt, I can usually wear a button down shirt for up to four days before it needs to be washed. Khakis or jeans can sometimes last up to eight days for me as well. Outerwear lasts a lot longer. No need to bring too many clothes.

Most of my 'traveling' is between where I work inna Inglan and home to Dub land. since I have more clothes than I need in each place, plus toiletries, most of the time, packing is a book, phones, glasses and passport.
Because I'm used to that, I travel ridiculously light going anywhere else - enough underwear and after that, stuff that can be worn over and over.

I HATE wheelie bags and people walking 3 and 4 abreast through airports dragging them by their sides, rather than behind them, often looking at a phone as they do so. if you can't carry it, you don't need it, and anyway, there'll be shops where you're going. probably.

I always carry on my bag or pack ... I go with a super heavily stocked Dopp kit, three novels, bunch of t-shirts (long and short sleeves), bunch of boxer briefs, many pairs of socks, a cap or two, a change of shoes or sneakers, flips, one sport coat turned inside out and rolled, one ocbd, one pair of non-jeans, incense, and some extra ziplocs, they're great for that wet bathing suit and stuff that's been worn a few times  ... and sometimes I'll pack an extra rolled-up small duffle bag   

wear or carry my outerwear

I really enjoy picking up a sweater or something on a trip if I need another layer for warmth, so I tend to underpack  ....

my winter trick is to pack a pair of longjohns, they save me time and again .....

when I go on vacation these days I like hanging out on the hillside just digging on the view and wearing a pair of shorts and a t-shirt and being barefoot, if I go out I try for some funky local place that doesn't require jacket and tie ....

obviously there are more dressy destinations at times, nice weddings and parties, those would be the main reasons for carrying suit, or tuxedo, or sport coat and tie ......

because it's not a grooving vacation for me if I have to wear the same stuff I'd wear to the office or to court ....

if the trip is one that requires a suit or two, I carry a good suit bag, I hang everything on hangers, jam one pair of shoes into one exterior pouch, jam the Dopp kit into the other, zip, roll it tight, and I'm good ......