i had my tires sitting in my backseat for awhile and there is a stain i can't get out----also, my front windshield has paint stains on the inside? any suggestions?

 

dont know about the stain in the back seats.. i would recomend taking the seats out and power-washing them..

and as for paint on your windshield.. i think windex takes off almost anything on a glass surface

 

or just scrape the window with a razor to get the harder sections off. Why didn't you lay anything down before you stuck the tires on the seat? Didn't you realize they would ruin the fabric, especially if you where going to leave them in there for awhile?
I heard vinegar is good at taking stains out of fabrics.

 

Try soda water on those tire stains.

 

Get some simple green all purpose cleaner and some #0000 fine steel wool. do this in a cool place ok spray simple green on the seat a gently wipe the steel woll overt the stain but be careful not to burn the leather with the steel wool. dont bare down to hard on the leather.next i would put some sort of leather conditioner on the seats to keep the leather soft..

Automotive detailer for ten yrs
chad a.k.a frankenstienvt

 

Don't know about leather either but for getting paint off anything, nail polish remover is your best bet.