Here's a simple solution to your spider/web/bug
issues. Go to your nearest Target and for $9+change
you can get a California Duster. After a year it's so
cheap you can throw it away and buy another. The
best part is that the work!!

 

I had them so bad in my other car, I used one of those "Fogger" cans. Worked great and left that "just cleaned" smell.