I haven't, I'd consider a reusable alternative though! Or maybe a pair of those would be handy to have in my frame bag if I do get into trouble when I'm out and about.
https://www.amazon.co.uk/dp/B00ZZV9T60?smid=A3P5ROKL5A1OLE
or
https://www.amazon.co.uk/OCOOPA-Rechargeable-Electric-Arthritic-Sufferers/dp/B07H3NFJRR/ref=sr_1_3?crid=UHDHGRJ9TTCM&dchild=1&keywords=hand+warmers+rechargeable&qid=1613229223&s=sports&sprefix=hand+%2Csports%2C205&sr=1-3
@freezing77 started
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I haven't, I'd consider a reusable alternative though! Or maybe a pair of those would be handy to have in my frame bag if I do get into trouble when I'm out and about.