I just hit 125k miles so I think it's time to do some good maintenance. Couple questions:

What kind of spark plugs work the best on a 5th gen?
How often should the coils be changed?
How do I get semen and female squirt juice out of my back seat? lol

 

1. Debatable. Some swear by the Pulsar crap (which they are), others different types of 'special' plugs, but for everyone else it's good old NGK coppers. Sure you'll have to change them a little more often, but paying $12 for an Iridium? ...no.
2. Coils should only be changed when they're bad. Otherwise, you're just replacing a relatively expensive component for no reason.
3. 

 

Look into using the rug doctor for your...um....your stain issue.

 

E3 plugs last 100,000 miles
Coils need to be changed when you get A misfire code
Squirt juice is good for your seats it has moisturizer

 

NGK plugs have worked great for me.