Similar problem with not wanting to stuff stuff into back pockets and hating fanny packs and live in the mountains with changeable weather...

I just bought a small handlebar bag, attaches with 2 velcro straps; big enough for granola bars, glove liners, leg warmers, earband, phone, journal and binocs. (i like to stop and look at birds, wildlife, flowers) My windbreaker has zip sleeves, but rolls small in the back pocket if not in use. If it's really chilly a Wool Ibex rolls very small also, but this time of year is usually under my jersey... The bag is soft, nothing fancy, is black (although it did come in pink), not heavy and fits nicely on the Bianchi's C2C's handlebars. My seat bag holds spare tube, pump, small first aid kit, tools, ID & $$ for after/during ride coffee. I'm good for all day 20 or 100 miles.

keep it simple, don't put a rack on that beautiful bike.