If you need to visually inspect your Christmas lights to determine which are good and which need replacement, there are a few things to look for. First, look for discoloration, such as a dark spot or two on the inside of the glass. The spot is an indication of a burnt filament. Also, look for missing filaments, cracked bulb glass, and broken sockets.

Take a picture of your house to easily replicate the same design for next year and keep the clips and accessories. When storing your lights, wrap them around cardboard so they don’t get tangled. Purchase a ladderless extension pole kit to hang your lights (around $30 to $50) for hard to reach areas.

If you only need strands in safe and easy-to-reach locations and are sure of your electrical system, you can probably purchase and install lights yourself. To do this, carefully test your outlets to ensure there aren’t any sparks or other concerning issues. Your budget might also influence this decision, as going the DIY route can be significantly cheaper.

First of all, don’t shop for bargain lights—often, you’ll end up with a faulty or broken strand, full of dead bulbs or less-than-luminous brightness. Choose quality lights that will last you many years—LED lights have been known to last as long as 100,000 hours. Second, plan ahead and purchase lights for next year’s Christmas during this year’s post-holiday sales. Finally, have a vision and a plan—if you know the measurements of your home, including any windows, doors, and outside bushes you wish to light up, you should be able to only purchase the necessary lights and not more than you need.