For me it is the dark that really takes it toll so for fear of repetition from last winter my daylight lamp is a crucial part of making winter bearable. I use it to wake up naturally in the morning and also for a blast of daylight during the day. I really do believe that it makes a difference to my mood and general energy levels over the winter. They are not cheap but are definitely worth the investment.
On the subject of darkness, our bodies can really start to miss Vitamin D over the winter so it is well worth considering taking either a Vitamin D supplement from the autumn onwards or a decent multivitamin including Vit D. These can be bought relatively inexpensively from the pharmacies and you can buy very specific combinations depending on your age etc. Although my son eats a varied, healthy diet I have decided this year to supplement this to try and keep the sniffles at bay.
Flu jabs are another thing to consider seriously. Many workplaces offer these for free and if you fall into specific categories you can get the jab for free from your doctor (over 65, pregnancy after the 12th week, obese, have heart disease, diabetes, chronic obstructive pulmonary disease, asthma and other health complications which you can discuss with your doctor). Last year I paid for my jab at the pharmacy (they advertise dates and times) and they were happy to give it to me, however they refused my husband and directed him his doctor. One way or another you can get this done easily and its worth it to avoid really suffering.
Lastly for comfort and warmth make sure you have a decent pair of warm, waterproof boots, a longer length winter coat, warm hat and gloves, ear muffs so you can enjoy the winter without freezing. If you are newly moved here from the UK whatever you would wear normally in the winter will not be enough if we do indeed get another winter like 2009/10 as is being predicted so it’s time to part with a fair chunk of money, but like the daylight lamp, good quality is a worthwhile investment.