I have a side business of wedding coordination and understand the "slowness" in the winter. For OP - have you checked in with other photographrs in your area to see if they need help with editing, etc. my area has a FB group of wedding vendors that all share referrals, ask for help with editing, second shooting, etc. and sell eachother equipment. Its really nice to see "competitors" teaming up and working together. Stick with what you do best and reach out!
Other cute ideas I have seen are team up with petstores/doggie camps, etc. for pet shoots, mini sessions for each holiday (valentines day is coming up!) at your house and tell friends/family, military diployment/reunions, etc.
Also - a local photographer went to the courthouse on 12/12/12 and shot weddings for free and hosted the photos online, but made some $ on the prints/albums. May want to consider for valentines day?
If you are at all tech savvy or have some graphic design skills - monograms, wedding invitation design, T-shirt designs ...set up shop on etsy. :)