I separate 3 issues here:
1) Raynaud for feet and hands.
2) Cold intolerance generally.
3) warming (as in Chinese medicine).
1) I wear 3-5 pairs of socks most of the year, unless it's really hot. And it's got much more due to fibro (before 1-3). They are organic cotton, with wool on the outside since I don't tolerate synthetics. I don't know if it's really Raynaud, altho it's one of my 30 diagnoses, and don't care. Warm feet is important for me not getting a sore throat, cold etc.
2) When my fibro full flare started up, my tolerance for the cold decreased considerably. I'd always got layers of clothing, and have increased that, so I can take them on off quickly, and I sometimes do so every few minutes. I wear 2 loop scarves much of the year, plus a 3rd in winter, 2 hoodies in varying thicknesses, woolen gloves half the year. Plastic "Rain legs" over the thighs are a quick one inside and out for cycling, but also just keeping (dry &) warm additionally. Therapy that generally helped me a lot was TCM/acupressure using the points that "activate the inner cooking pot". She only needed to do it once. Since then I can be outside longer and it doesn't creep into my limbs so meanly. So that's where TCM helped me. But...
3) none of the 'Chinese' suggestions help me as my tongue, stomach and gut don't tolerate any warm or spicy foods at all...
Despite or because of all this, very short cold showers (1-2') and cryotherapy (3') are mainstays of my therapy and help me for energy, Ache, exhaustibility.