Clothing - Check your old winter clothing to make sure it is in good condition. Boots, down jacket, gloves, Poggies, Fat Bikes all need to be serviced from time to time. Love them so that they work when you need them. And remember, we have three awesome local bike shops here in Laramie that support you by putting on races, donating prizes to races, advocating for cycling, working to improve trails in the summer and winter, and being a cultural, social and professional community that helps bring cycling to your back door. Support them so they can continue to support you.
Lights are awesome in the winter - consider getting some that are rechargeable because it gets dark at 4:30.
Find a riding partner. Join the Facebook page "Laramie Group Ride" or "Happy Jack Fat Bikers, Inc." to find people to ride with. Jeff, Milton and I hope to see you out there!