I have a 45 mile round trip, which I do throughout the year.
I can't be arsed with mudguards (I can wash and dry my clothes at both ends of my journey) , I have a fixed gear Bob Jackson (rinse off, GT85, done!). My tips:
1) Quality clothing + glasses
2) Overshoes
3) Waterproof gloves
4) Cheap tyres, rubinos are ok, let some pressure out when it's wet
5) Get some good lights + Sam Brown belt
6) Always ride You'll get used to it very quickly!
BTW – It's still summer out there! It's one layer of lycra + gilet weather… :-)