as per normal except to take note
1. electronic devices take note battery life is much shorter.
2. camera lenses take note that they tend to fog up when transiting indoor <-> outdoor due to great temperature difference
3. keep ur contact lens solution away from outside. in fact, keep any liquid stuff from outdoor exposure, will harden or freeze
special needs for ur own comfort
1. protect ur ears with a woolen hat or ear muffers
2. protect ur neck from the cold
3. invest in good gloves, ie those tht's v. thin yet v. warm. thick gloves make u v. clumsy
4. take note, thicker <> better cold protection. get proper winter clothings. they're not cheap but is worth it