• my boots broke in
• my camo hat
• driving my truck across the railroad tracks
• a fresh cut field with a first frost on
• how it [a fresh cut field with a first frost on] shines like gold when the sun turned on
• the sound of them wheels [presumably the wheels of LoCash’s truck when driving across the railroad tracks] with my baby singing along when “The Boys Of Summer” comes on – it’s not entirely clear in context whether LoCash has an independent love for when “The Boys of Summer” comes on or whether the aforementioned song coming on modifies LoCash’s love for the sound of them wheels with my baby singing along, perhaps to an unspecified song; I think it is the former
• my small-town world
• a country girl
• a Friday night
• this life
• that county line bar where they all know my drink
• the way she throws her hands up when that cover band plays – really the same editorial comment here, and in the next item, as to “when ‘The Boys of Summer’ comes on”; again, in context, I think the better understanding is that LoCash specifically loves the way and the taste as modified by these specific circumstances rather than as loving, in each case respectively, two separate things
• the taste of her lips when she’s been sippin’ that wine
• that ragged old barn that my grandpa made
• that little white church out on 109

Additional things LoCash may love, but for which their love is not clearly expressed: 

My understanding from the song is that LoCash also loves “the sound of an ol’ dirt road rollin’ through my mind” however they do not explicitly profess a love for this. In addition, LoCash notes that “I still get drunk on her every time” which, while not specifically professing love for her, I think is best interpreted through the metaphor and in the context of the song listing things that they love as loving her.

Addendum: Songs listing things can be great (see, e.g., Kip Moore’s “Something ‘bout a Truck”) as, of course, are songs with unbridled optimism and enthusiasm for the great things in life (see, e.g., Kenny Chesney’s “Life is Good”). Preston Brust (together with Chris Lucas, LoCash f/k/a LoCash Cowboys) talks about writing this song here, saying “We got to talking about how there was so much negativity on the news. We were kind of fed up with it that morning. [We said] Let’s get back to the stuff that we love, the little things. Let’s make a laundry list of all the things we love, and let’s call this song, ‘I Love This Life.’” What a perfect mentality for writing country songs!

NB: As this song was co-written by Brust, Lucas and two other writers, and sung by both Brust and Lucas – in the first person – I have sort of just assumed that both members of LoCash each love all of the items in the song, I think it’s better that way.