Sheet protectors

No pref brands for me as I do not use them - bulky-bulky-bulky and what purpose if you do not use the reverse of a page to mount........

René

You probably will regret doing this........why do we transfer Scott Album pages to specific Country custom albums ?.....to get rid (besides other reasons) of this problem, that "clutters" our albums and this is 40 years of experience and I just realized it for the past 3-4 years !!....no more reverse page usage 
I use my own custom page "maker" and also Steiner pages if appropriate. No reverse pages in both.
René

btw: I respect your choice

Thanks, I'll check out Wally World!

Stanley/stainlessb, not to dispute the Wally World recommendation at all, but I've found that Costco (or Sam's Club) beats their price on sheet protectors, if you happen to have a membership at either one.

My Costco sells the Avery Premium Heavyweight sheet protectors (in typical Costco fashion, they only sell the one type), but I've been using them for years and haven't had any problems. The box says they are acid free, archival safe, and won't lift print, but, of course, if you were protecting something particularly valuable, it might be worth digging a little deeper into their archival characteristics.

I am using sheet protectors and are very happy with using them, wouldn't be without. I have the same reasoning as firstfrog2013, and additionally it feels comforting that the stamps are totally safe when turning the pages. Like yourself I am using both sides of the sheets, adds less bulk and allows having long series visible at the same time.

I am using Esselte top and side loaded protectors, having opening on two sides makes it even easier to insert pages than if only having opening at the top. The pages still sit firmly in the protectors when turning the pages. Esselte is not the cheapest but premium quality and durable.
Good luck!!

My favorite protective sheet is the 3.3 mil thick clear Office Depot / Wilson Jones.  I can find them on sale at the store or get them from Amazon.

Pete, I discussed "bulk" in relation to Scott Albums, not personally made Albums. Just wanted to clear this up. I have not started using protectors as I am just starting to do personal, less cluttered, albums. My CANADA 1 album goes up to 1945 or so, the rest stay in dedicated Lindner (Lindner 1 was sold in the 80s), hingeless (bought from Darnell Inc. many years ago) and no need to mount Albums (my father bought those as a Canada series). As for other Countries, I do not have the luxury  of such Albums, so up to 1940 goes in personal Albums and  the rest stays in Scott International 1-6 Albums. The one side/double-side issue is another story.

FYI
René

These Scott Internationals were bought for me by my late dad, end of the 60's ($$$) and every year we bought supplement pages up to the point I became "stamp-inactive" and do not care to buy more as the Albums have grown in size since (bulky with stamps) and I started to change my method of Album-ing.

Now I am starting to look at the Germany stamps.....what a "challenge" because of the History of that Country and  Scott Stamp Cat does a lousy job. So I will look at the Steiner format. Not started yet as I am gathering the stamps from everywhere....2  old Junior Scotts......my old Ambassador Album......bunch of glassines+envelopes and some were hinged many years ago in the International Vol 1 mostly + Books bought in the 60's by my dad. This is a "project". I have Michel in my computer but German is not my language(s).