replacing clothes

Use it up,

wear it out;

make it do,

or do without.

That was a WWII slogan encouraging Americans to conserve resources for the war effort. In Jennifer's introductory post, she had a picture of a WWII poster with a woman repairing her hubby's pants.

But, when should Christians, living a wartime lifestyle, replace old clothes? Would a Christian wearing these pants be telling the world, "My treasure is in heaven," or "I still listen to Nirvana"?