You are $11 short of free shipping, and a $14 lip balm sits beneath the checkout message. Adding it would remove a $6 delivery charge. It would also increase the order total by $8 compared with paying for delivery and buying only what was already in the cart. These are example amounts, but the comparison is the one that matters.
First compare the two totals without judging them. Total one includes your intended items and the delivery fee. Total two includes the extra item and any changed taxes or charges. The difference is the additional amount you are choosing to spend. Free shipping describes one line of the bill, not the entire purchase.
If the extra item is a replacement you would buy soon anyway, adding it may be reasonable. Check that it is the right product and quantity rather than a substitute chosen only because its price fits the gap. Also consider whether buying it now leaves money available for other purchases you have already planned.
A wish-list item deserves a different question: would you choose it for the additional amount? In the example, the balm effectively adds $8 to the order. That can be worthwhile if you actually want it. There is no need to pretend the purchase is compulsory or that the whole $14 has vanished because shipping became free.
Other ways to handle the gap
Check whether waiting until you need another item is practical. You might combine planned purchases later, choose an available pickup option or buy the same intended product from another suitable seller. Compare the complete costs and effort of those alternatives. A long trip solely to avoid a modest delivery fee may not suit your day.
Be careful with subscriptions, memberships or larger quantities offered as shortcuts to the threshold. They can introduce future charges or more stock than you expected. Evaluate those terms separately instead of accepting them as a small checkout adjustment.
Sometimes paying delivery is the cleaner choice. It lets you buy the amount you want without finding a role for another object. Once you have compared the totals, you can make that decision and stop browsing the suggested extras. The threshold belongs to the store's pricing system; it does not have to become a task on your shopping list.
