Felt insoles in my winter cyclying shoes(clip less), wool/hollofil blend socks. When its below -10 C I use neoprene mtb shoe covers and toasty toe chemical warmers. If it is really sloppy wet I use rain covers as well. Kept me warm all winter on my 45 min commute.
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When sadness fills my days
It's time to turn away
And then tomorrow's dreams
Become reality to me