My 2006 Limited manual trans. has 92k and has been well looked after since I got her about 3 years ago. As luck would have it, my primary car is no longer available (loaned permanently to a needy relative) and I want to save up $$$ for a more expensive replacement. So it looks like my garage queen is now my daily driver, with a 30 minute commute 5 times/week in start and stop traffic. I no longer have the luxury of this car being my weekend toy, it has to be reliable day in and day out. What are the maintenance areas that I really need to check to make sure that happens?
Since purchase I have done the following:
Yearly oil and filter changes
New air filter
New coolant with upper and lower radiator hose changes
New RCM
New camshaft and crankshaft position sensors
New belt and new idler pully (not tensioner)
New spark plugs
Resealed breather covers
Tires have maybe another year of tread on them

What else should I check or replace to make this 18 year old weekend ride as reliable as it can be?

Thanks for your advice.