Motorized smart shades let you control glare and privacy with a tap, and a good set should easily last a decade if you pick the right hardware. Buy once and install them right, and you won't have to deal with sagging motors or dead batteries a year from now.
Keep an eye on the release cycle right before Labor Day, because companies often discount the previous year's hardware just to clear shelf space for new models. Last year's version usually has the exact same motor and battery life, just without a minor app tweak you won't even notice.
That 0% intro APR for 15 months on purchases and balance transfers is a deadline, not free money, and any remaining balance when those 15 months are up will get hit with standard interest.