First of all, don't neglect your sexuality! It is healthy and a normal part of life. Being single is no reason to lose interest. That is exactly what can happen if you neglect this aspect of yourself.

That being said, different things work for different people. Here are some options:

The traditional masturbation route
with porn, either video, pics, or erotic stories
with fantasy
FWB
Casual sexual encounters (practice safer sex)
Online experiences such as chat, webcam, exchanging sexy emails (be smart about)
Spice it up privately...go out with a quiet bullet inserted or similar
Treat yourself to some new toys
Get involved in online sex blogs

Feel sexy, be sexy. Don't neglect yourself. Don't give up sexy undies ladies! Don't neglect your appearance and your self esteem.