Marriage is overrated.
Depend on your spouse.
And no, I'm not still a "newlywed," we celebrated 6 years in June. We just try every day to see who can be the sweetest to each other... and it ends up being a nice way to live.
What about investing in Savings Bonds?
Savings bonds are not currently (and aren't usually) the best way to grow your money. The best rate available right now is on the I-bonds, at 1.5%, and it's variable. The best fixed rate is 1.4%. I can make more than that in my savings account. The only positive about US Savings bonds is the 100% security of the money.
Mutual funds are the safest and best way to grow your money... as long as you pick the right ones. If you know little or nothing about the investing, it's best to get help. Lots of people throw away lots of money trying to save.