Cartophilium
Banned User
Bubble Mailers
Take your mailings to a post office. Avoid the temptation to simply apply proper postage and dropping the bubble mailer into the nearest red mailbox.
At the post office the small bubble mailers are kept apart from the parcels. In the red mailbox someone can drop a heavy parcel on your small bubble mailer piercing the outer paper layer, resulting in a snag in the machines later if not detected.
Bubble mailers resist the kind of incidental damage that white paper envelopes don't.
Being torn or dropped, having something dropped on them, etc..
No, bubble mailers aren't perfect. Excessive pressure or a bad angle will break the wrapper, case, and card in almost any package. But the bubble mailers do provide somewhat better protection, even if it is marginal.
That said, I don't think it should be some kind of standard or anything, where people are looked down upon for using envelopes instead.
Take your mailings to a post office. Avoid the temptation to simply apply proper postage and dropping the bubble mailer into the nearest red mailbox.
At the post office the small bubble mailers are kept apart from the parcels. In the red mailbox someone can drop a heavy parcel on your small bubble mailer piercing the outer paper layer, resulting in a snag in the machines later if not detected.