What would you do if you found your SO's secret stash of thousands of dollars?

What would you do if you found your SOs secret stash of thousands of dollars?

While your SO is away on a business trip, you decide to be nice and clean the house while she's gone. While cleaning under the bed (which hasn't been cleaned in years), you find a glass jar with thousands of dollars in it. It's her secret stash.

What do you do? She comes home tomorrow.

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Or whatever currency applies in your country...
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Maybe I should have used a picture of a suitcase filled with money. We're talking thousands of dollars here, nut just a few ones stashed in a jar.
What would you do if you found your SO's secret stash of thousands of dollars?
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