Now to answer the question..... errr sorry if I sounded too strong before...
For children I like to use fleece as a back/batting (just one piece) with a fun fabric quilted onto the front. I don't put batting into it because I've been told, more than once, that fleece is enough warmth. And the feel of it is totally soft and "loving".
For adults I use leftovers, usually done in a simple pattern of squares or rectangles, but with a lot of "trial" placements to give a good design, and put together in a traditional sandwich.
For street people, that's where ugly (but warm) can be best.