If I have plenty of spare time and want an exquisite experience, I will step into a steamy bath with scented candles and bath salts, bringing along my prostate massager and masturbation sleeve.
If I just need to get off, I will likely be in front of the computer watching pornography, reading erotica, or, uh... engaging in other activities. In the case of other activities, I use a minimal amount of lubrication so that I can continue typing.
Sometimes, I find my thoughts drifting as I lay in bed at night, so I may bring myself to orgasm repeatedly without ejaculating, as I don't wish to dirty the sheets. Plus, it feels nice to have multiple orgasms instead of releasing and being forced to wait a while before the gun is reloaded.