Olive oil shouldn't necessarily last you a long time, it degrades pretty quickly and I've met way too many people who are dunking their bread in rancid oil because they think it's like wine.

I use it for roasting veg (yes I've read the arguments against that and I don't care), it gets mixed in with farro/roasted veg salads, bean salads, roasted veg salads, regular salads. I use it in certain breads that I bake. I use it to eat a loaf of bread with (fresh boule + olive oil mixed with red pepper flakes, salt, pepper, and some grated parm = the best). I use it in hummus even though I know that's non-traditional. I use it in pestos and other spreads. I toss it with pasta/garlic/parm when I'm too lazy for real cooking.

Tonight I'm making cod gyros (yes, homemade pita) so I'll use olive oil for that.

I just love olive oil, and life is too short for the mediocre stuff.