Prices on electronics bounce around so much during this stretch that there's no magic cutoff date where everything suddenly tanks. Labor Day does usually have solid deals, but if you see a laptop at a price you're happy with right now, grab it - electronics can sell out fast and restock at higher prices. For comparing, Camelcamelcamel works great if you're eyeing stuff on Amazon since it tracks price history, and Google Shopping lets you filter by retailer and sort by price pretty easily. The supplies are honestly the better gamble to wait on since back-to-school stock usually gets picked over by late August, so Labor Day weekend often has better clearance on notebooks, pens, and folders than on the bigger ticket items.