+1 on not spending money to upgrade. I'd ride it like it is.
That said, if the gears really bug you, it doesn't sound like you need as low of gearing as you have, so you could put on a more tightly spaced cassette, such as an 11-23.
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You could fall off a cliff and die.
You could get lost and die.
You could hit a tree and die.
OR YOU COULD STAY HOME AND FALL OFF THE COUCH AND DIE.