There are plenty of major environmental changes you can make when you have an unlimited budget – like installing solar panels, buying a hybrid car, or putting all new windows in your home. But not all the big impacts come from big spending. Make a few small, inexpensive changes – some of which are even free – to cut your carbon footprint (and save some money in the process).

Shop at the Thrift Store

You won’t just find great deals at your local thrift store or secondhand shop: You’ll also help the environment by preventing those items from ending up in a landfill and reducing the impact of the manufacturing of new materials. Just make sure you go in with an open mind: Tailoring too-big clothes, painting ugly lamps, and recovering furniture are just a few ways to make someone else’s trash your treasure.

Ditch Your Car

Maybe selling your car altogether isn’t entirely practical, but cutting out the number of trips you take in it is an easy way to save money. Invest in a used bike, buy a public transit pass, and plan your weekend trips according to neighborhood so you can drive less, and you’ll save on gas (in the short term) and maintenance (in the long run).

Turn Down the Heat

Want to cut your home utility bill? Then start by turning down the heat, both on your thermostat and on your hot water heater. Layer on another sweater to stay cozy even after you drop the temperature a few degrees and – if you have the funds for a one-time splurge – invest in a high-tech thermostat system that will automatically adjust the heat when you’re out of the house.

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