Also, on the "other tidbits" side:

The oil drain bolt has an aluminum washer. You want to replace
that with each oil change (a dealer will often sell you one
with each filter).

www.volvoparts.com has pretty good prices (the web site could use
some work, though) and they ship things fast.

Some guys pre-fill the new oil filter with some oil so at startup
after an oil change you get quicker lubrication. I'm not sure
if you can do that with the cartridge (but I always thought it
was a neat trick).