So I have an 11-25 cassette in the rear and 52-39 on the front. My regular route has a 1 mile steep climb to it that really kills me. I don't think it would be so bad if my gearing were a bit lower.
I have two options. I got my bike used and the previous owner left the triple shifters on, but set it up to work with the double crankset. So, I could get a triple crankset and use that. Or... I could swap out the rear cassette to an 11-36 mountain bike cassette. Apparently that works, but I'm not sure how well it works.
I used a gearing calculator and the 11-36 would actually end up giving me an "easier" gear than swapping out the crankset. But... the triple crankset will offer me more gear options.