136 posts and no one said "use both sides of a cleaning patch" for gun cleaning. Though to be fair, I stopped doing that because it sometimes spreads crap rather than cleans. Works fine for oiling a clean and dry gun though.
Forgo underpants
Ride a motorcycle from March to November to commute, especially one that can use cheap gas
Save your brass and shotshells
If you want good shotshells or brass, like the old Winchester AAs, go dumpster diving when no one else is around
Sneak around the edges of a golf club to get balls that flew off course
Nature is God's supermarket - go forth and hunt and fish and grow plants
Grow out your facial hair to reduce the use of shavers - I haven't bought shavers in four years and get about two or three haircuts a year
If you like buzzcuts, have the wife/mom/girlfriend buzz you unless she's a pro
Master the art of duct tape
Dress simply and humbly with functionality in mind
Don't drink alcohol or use any "substances", including cigarettes or cigars
Shop around carefully when buying a house to ensure the best tax rates and carry permit issuance policies
Furniture should be cheap and well-worn - my grandfather once made his own couch
Turn off the lights when you leave the room
Open the windows rather than use AC
Bundle up inside your house in October, November and early December
Walk everywhere possible rather than drive there
Print documents on both sides of the paper if possible and if it would be acceptable
"Find" pens and pencils - keep your eyes on the ground
If you see money on the ground, pick it up, no matter if it's a penny or a $20
Eat at home rather than eating out
That about covers it that I can think of right now.