I tried those bags once...stored them under the bed. They were great..for a day or so. We have cats with claws ...needless to say the bags didn't stay vacuumed tight for long...lol. Haven't bothered again with them..lol

They did not hold for me.

I tried them and they weren't great but I do like the trash bag idea. I'd use the heavy ones, maybe lawn bags. They're quite large but if you suck the air out of them it'd bring them down to the size you want/need.
~Deb~

We've tried them 2 times....7 bags the first time (in a pkg) and I think 3 in the other. NONE of them held their vacuum!!!! Never had a chance to see if they wrinkled the clothes. Good luck!

I also LOVE space bags! last christmas wanted to send an afghan i'd crocheted to my dil; it was huge...puffy...i stuffed it into a space bag, vacuumed it and made it fit into a flat rate box...she about died laughing when she opened it up...they were amazed i managed to stuff such a large item into such a small bag. i have not had problems with them not holding. bought them at bed, bath & beyond for about $12 for a box of 5 different sizes.
i have some bedding that never gets used stuffed into a large one in the linen closet that has been there over a year, still flat and solid, no air leaks.

WARNING WARNING!!!

If you're saving things in garbage bags you can't see into - make certain to LABEL THE BAG - to no one throws it away without looking into it.

I've heard of horror stories of family quilts being thrown away by relatives.

Me, too. I stored sweaters in them in cabinet with adjustable shelves. They expanded and lifted the shelf above, making stuff on both shelves hard to remove.

I have bought STOR-IT bags at the Dollar Store. They are very durable but do not have a place to use the vacuum hose. There are 2 or 3 in a box depending on the size and they are only a dollar a box. I just squeeze the air from mine,maybe you could use the vaccum hose too? They are great for fabric storage and very inexpensive!

They make space bag brand bags that don't have the vacuum hole too. It says to roll them up from the end opposite the opening to get as much air out as possible, then seal. I think it's on bags that are smaller.

Living in the northeast, I use them all the time to store seasonal clothes and winter blankets and coats. My only complaint is once in awhile I get one where the seal doesn't hold and it will slowly pop back up within 20–30 minutes. So, when I purchase new ones, I save the packaging/ sales slip to return defective bag to the store to for replacements. Not had any trouble making exchange at local Wal-Mart when I explain the seal doesn't hold. And, this only happened twice in 5 years.