wait till you need...
-plugs
-leaking oil filter housing gasket
-leaking valve head cover gasket
-leaking washer pump container
-broken or snapped off head bolts that get stuck in the block
-passenger seat sensor
-something that fails to pressurize your gas tank and always shows your car on E with a SES light
-1 working xenon bulb
just to name a few...happy motoring
