It is daft but really the council should provide bins, it is always a problem when only sacks are available. Our recycling and food waste are collected at an unearthly hour on a Wednesday morning so bins (blue and green topped) are always put out the night before. If we only had sacks the foxes would pull them apart, I can remember that happening many years ago and it was dreadful. The general refuse bin (black top), is collected about 1.30pm so can go out on the day but because we have bins for everything, if people are away they can put them out in advance.
Nothing (don't remember what I was going to say here, I seem to have started a new sentence :-) ).
If it really is a problem floo, why don't you and neighbours ask the council for extra bins? That's what happened in Greenwich Borough where I live, so long ago that I don't remember; it wasn't me who complained and asked, I thought about it and by the time I'd finished thinking, others had done it and we had new bins. They don't have to be great big ones, just up the road the borough is Bromley and they have small, neat recycling and food waste bins.