For maximum heat retention, pack fiberglass insulation around basement doors, windows in unused rooms, and window AC units. Make sure your attic floor is insulated, too. Just remember to be careful and wear gloves! Cost: around $25 per roll.
Custom Leathercraft 125M H... $9.52
Honeywell RTH2300B1012/E1 ... $17.99
Dap 18001 Kwik Seal Caulk ... $1.18
MANZOO 7-Pack Microfiber C... $7.99
Lasko 754200 Ceramic Heate... $26.89
Newborn 930-GTD Drip-Free ... $10.49
Hampton Bay Hugger 52 In. ... $44.99
Thermwell Products SP50 Fi... $4.00
Koch Industries Twisted Po... $6.34
Outlite A100 Portable Ultr... $12.99
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