Good topic @Mare60. In some cases, there are devices out there that can assist such as this range of toothpaste squeezers, although I’m not how good the quality of some of them would be.
My packaging pet peeve is with some plastic sauce and mayonnaise containers with a bottle opening too small to fit normal utensils. At a certain point the product can longer be poured/squeezed out, but as you’ve mentioned there’s often still quite a bit left. If the opening was just a little bit bigger, you could easily scoop out until empty. But instead you need to hack it open, which takes a lot of care to avoid injury and then you need to transfer to different container or use a covering.
Excessive packaging, hard-to-open packaging and packaging airspace are worth mentions here too.
