(Make sure you dispose of the old oil according to local laws; most gas and service stations will accept your used motor oil.) Use your car manual as a guide for the procedure and you might just find it’s both a lot easier than you thought and a useful skill to have — it’s cheaper than taking your car to Jiffy-Lube (or wherever you go for oil changes).

Make an effort to introduce yourself to your neighbors if you don’t know them very well.

Invite some friends to do the same, then get together for a potluck dinner prepared from only these ingredients and whatever else you have on hand.

My favorite podcasts include The Splendid Table (on food topics), Marketplace (on economics and business), Radio Lab (scientific and philosophical ideas), Fresh Air (interviews of general interest), This American Life (quirky general interest stuff), and This Week in Tech (technology news), among many others.

We have a pile of board games, mostly received as gifts, that we often pull out and play; our closest friend has a few choice ones as well.

A few years back, my wife and I began experimenting with the concept of a money-free weekend to live more frugally.

It’s actually a fun challenge – and one that helped us discover an incredible number of free things to do.

Since then, many people have sent me more ideas for things to do on a money-free weekend, and we’ve uncovered a bunch of our own as well.

Meanwhile, many readers have asked for a master list of all of these ideas.We delay grocery shopping, and just use up what we’ve got in the pantry.We can use our utilities, of course, but nothing extra such as a rented online movie.If you meet any interesting people in your neighborhood, invite them over for a cup of coffee and a chat, just to get to know each other better.Your neighbors could not only become your friends, they could also be a valuable resource – a friendly pair of eyes on your property when you’re away or a helpful set of hands when you’re trying to complete a challenging task.The biggest challenge, for most people, is dodging boredom — figuring out fun things to do that don’t cost any money.