By all means, I'm not ragging on the Post Office, I'm just stating the facts.
I'm sure we have all had our bad experiences. Case in point, a Tickle to Australia took a month long tour before arriving at the destination, while the replacement took about 10 days.
A pack of paper going about 200 miles within the same state, took 2 weeks.
A Christmas card mailed on or about Dec 3rd is MIA. It's going to a fellow Scs'er.
But there's the good side of using a padded envelope (parcel) and it getting to Utah in 2 days.
Like Elizabeth, I use bubble wrap, a sheet of cardstock over the card front, and even felt. I don't mind paying the extra postage.
But I do want people to know just what it is their mail piece is going to go through. The machines that sort your letter type mail are not gentle. The more management can force through the machines, the greater their bottom line, the less they need an actual person to do the job.
This is just a Caveat Emptor.
Have fun and be creative!