-Lengthen your commute and find a longer but shallower climb to your destination.
-put a mtn bike cassette on your rear wheel. (you dont mention what type of bike your using)
-minimilize your bike, become a weight weenie, so your powering less weight up the hill.
-with enough time you'll have the power to clmib it with easier work
And lastly, at only 3/4 of a mile its not really a hill