STR helps most when it is turned into a small budgeting system, not just a temporary spending boost. A good household plan uses the aid to protect essentials, reduce weekly pressure, and avoid one-off supermarket overspending.
The easiest mistake is to treat the support as general extra money. A better approach is to ring-fence the part meant for essentials. Groceries, household cleaning, and repeat-buy family items should usually be covered before discretionary spending grows.
Households usually get more value when they plan a short practical horizon instead of trying to solve every future spending problem in one go. Look at what will definitely be bought soon, compare those items first, and only then look further ahead.
Price comparison works best before the basket becomes emotional or rushed. Search the items you know you need, shortlist the stronger merchants, and then build the trip from there.