Unless it a large event, no, there won't be cleaning stations.
What I bring:
- bike
- pit wheels
- tool kit (all the standard stuff - including lube, rags)
- pump
- shoes (bring spare cleats and ratchet straps!!)
- helmet
- 2 of everything cycling clothing wise (in case I get dirty during warmup laps)
- cold weather riding gear (for the warmups)
- bike stand (so I don't have to lay my bike down or lean it against something all the time)
- licence
- safety pins
- base layer clothing
- post race warm athletic clothing (sweater and workout pants - race is over, i'm not throwing on my sexy jeans and precious J-Pow tshirt when I'm covered in mud)
- arm/leg warmers
- towel and baby wipes - at least get your face clean for the podium!!
- toque and gloves
- food (clif bars, gels, NUUN tabs, lots of water)
Nothing gets cleaned until I'm back home. The races I go to, there's never any provision from cleaning/washing.