I had departed Apple Valley solo after two days waiting
for gusty weather to subside.  Halfway through the trip
I had tired of applying right rudder to correct for
the C-152 "ground adjustable rudder tab."  I carefully
moved over to the right seat to change the lateral balance
and the plane flew perfectly straight.  I decided to
land in the right seat as well, although I had only
100 hours total time and no right seat time.  On landing,
I did not compensate for crosswind or my new right seat
view, and landed hard in a crab.  The rudders and nosewheel
were sluggish and I almost ran off the runway.
  After shutdown I found the nose strut totally deflated.
In the gusty dirty winds of Apple Valley, the strut had
banged up and down for two days and filled with grit around
the strut seal.  This explained the sluggishness on landing
and taxi.  Now I wipe the strut clean before and after each
flight.  I also have practiced right seat flying with a CFI
to coach my landings.