Change it up.
Get a fixed gear.
Or a gravel bike and do some local mixed surface loops once or twice per week. I bring my drop bar gravel bike to the MTB park every so often just to freak out the mountain bike guys.
Take the bike on an overnight trip to a B&B.
Go for a <gasp!> trail run.
@
canklecat's recommendation to ride at night is excellent.
-Tim-