howdy people.

just bought some yokos for the van (feeling insecure with all the recent
praise going to the mxt's) and realized i don't know what aligment is...

1)  what takes place when someone aligns your van?
2)  can it be done by me?  (assuming i can do stuff)
3)  how can i tell if my van needs alignment?  tire wear on the old ones
are smooth and even.

thanks plenty.

Rik