Chip & Bin: It only leads to more confusion
Chances are your (recyclcing) bins (like in old England) have mountings for such devices. That way they can be weighed, checked, folded spindled or mutilated (something council workers are good at), which would be bad for me as local undesirables decide to fling their plastic bottles of cheap alcohol (having consumed the contents and leaving the lids on) in my bin. Littering is also a problem and I suspect I won't have to wait long for the vomiting to start. Anyway, I'm digressing.
The problem in my part of the world is that they only recycle stuff that is bottle shaped, marked PET(E) and/or a triangle with a 1 or 2 (or marked HDPE) on it. Plastic trays made of the same stuff are not accepted. However, some bottles are maked with 5 (or PP, food grade such as ketchup bottles or fruit containers), so this leaves me in a dilemma of whether I fling it in the recyclables or the normal trash. Not only that, some stuff is marked with a 6 (or other) or even a 7 (or other) which they won't recycle either. As for stuff marked with a 3 or 4 (polythene bags) they don't do them either, so they go in another plastic bag for trash day. They also don't do the lids off bottles, but some lids are maked with a 1 or 2 so they are rightly or wrongly flung in Fortunately glass bottles, jars and cans are recycled. Ths could place me in the strange situation of having a recyclable lid on a non-recyclabe bottle.
As far as I can gather, Germany and the rest of Europe (and Japan too) have been doing all the lot since the 1990's and we started in 2007, so we have a long way to go. I'm due a 3rd bin in October for non-recyclables.
A nice triangle as I'm confused.