Zip Lock- type packages without the sliders. I haven't been able to do them consistently ever and never bought the bags. (I did have some luck with the double track ones, but still hated them.) It takes much longer to try to line the darn things up to seal, then when they get cold or bent, they fall apart. Now lots of food comes with them built in, and they are even weaker than the Zip Lock bags.
Now our bread (Arnold's Rounds) comes with it built in and gave them a chance. Now, I do the same thing with them that I do with all the others. I cut off the annoying zip lock and put the food into a bag with a twist top so I can count on it. I can only use the bags for a couple of purchases, so it really is a huge annoyance and waste. If it's hot dogs or something else messy, they only last for one use.
I must be the only one, though, because they are used on so very many products now. I wonder if Schwan's and Oscar Mayer are reading this.
Oddly, I have not trouble with the squeeze to open lids (Cascade, mouthwash, toilet cleaner), but it may get pretty hard when my arthritis gets worse, so I'm beginning to dread them, too.