Get the snip anyway if you don't want anymore kids.
Much less invasive (read risky) than the wife's tubal would be.
Fewer side effects than her taking oral contraceptives (cancer, osteoporosis etc).
More spontaneity than mechanical means.
And usually not much downtime for healing. Had mine done twenty years ago. Took a week off work and milked it (pun intended) for sympathy. Just consider it permanent, reversal is expensive and often not successful.
And don't let the dog know ("WHAT!!?? You had mine cut off?? And you just got a couple little tubes snipped so you can still have fun??? GRRRRRRRRRRR!!!").
Oh. And for the bike. I just need to fit the financial. After my pickup is paid off (about two years) I'll have another. I get one set of vehicle payments at a time, so does she.