Why the hell would you need to save anywhere near 10,000 texts?
This confusion can easily be avoided if you pronounce the word intended aloud. If it has a voiced Z sound, then it’s “lose.” If it has a hissy S sound, then it’s “loose.” Here are examples of correct usage: “He tends to lose his keys.” “She lets her dog run loose.”
Loose
not rigidly fastened or securely attached
Lose
to miss from one's possession or from a customary or supposed place
Also, just because a word has an "s" at the end, doesn't mean it needs an apostrophe.
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