cars are expensive

i went to get the oil changed and the tires rotated and balanced on our car this morning, and ended up paying almost $200! it turned out that i needed a new tire because the tread was starting to separate. i also needed new windshield wipers since ours didn't wipe anymore. :D it also turns out that we need to replace the other 3 tires soon, as well. how long do tires usually last? atleast we'll be in good shape when we leave for our 3-day drive to washington state this summer. yay for economic stimulus rebates!!!