If you are still looking for something different to try in January, then why not try something very different - and rather than a choosing a different subject to photograph why not try using a different lens - if you have a prime lens - or lenses pick one - maybe the 50mm for example and set yourself the challenge of taking all of your photos during January with just that one lens. It will make you think quite differently about how you use your lens and the way you photograph things.
If you don't fancy the prime lens challenge, then how about shooting everything in black and white ?
If you don't have a prime lens and worried that you will cheat if you try and set your zoom lens to 50mm for example, then why not hire a lens for a long weekend, lens-hire.co.uk have some great offers for lens hire and it means that you don't have the expense of buying a lens, their rates are very reasonable.
If the local woods don't inspire you anymore, look slightly further afield - Slimbridge is a great alternative, have a little mooch on Goggle and look for other local days out for something different to spice up a photography day out.
There are many options for days out with your camera that will get you excited about your photography again.
Maybe you choose to shoot a series of dusk and dawn images, or actual sunrise and sunset images. Whatever you choose, stick with it for the whole month and try a produce a really interesting series of images to start your year off with.
Have fun and let me know how you get on - and if you still need more inspiration I have my Book of Photography Ideas for just £10 to give you monthly inspiration.