The road to ruin is spending beyond one’s means.
“You’ll be the ruination of me,” is a remark to a dependant with extravagant wants.
A dead loss is useless.
He’s loaded means he is rich. A loaded question is one phrased in a way which encourages a particular answer. In Latin there are different question words which have this effect – nonne and nem.
Not to be sneezed at and not to be sniffed at both mean worth having.
To the tune of… may introduce a price or a comedy party-piece popularised by the radio show I’m sorry I haven’t a clue – one song to the tune of another.
Top of the range means the most expensive item with the most extra features compared with a basic model.
A catch penny is a place or a scheme designed to make money.
Salt away means save. It is an old expression handed down from days before refrigeration, when salt was a good way of preserving food.
Cheap and nasty describes some inexpensive goods. Buying such items would be false economy.
Pay through the nose is an idiom meaning pay more than something is worth.
Feather your nest means make things comfortable for yourself, perhaps selfishly.
On a shoe-string means on a low budget.
Cheap at half the price means rather dear.
Spare a dime is a beggar’s expression. I saw a more imaginative one on a piece of cardboard, “I bet you can’t hit me with a dime!”
Worth a mint is very rich describing a person or very valuable describing a thing. A mint is where money is made.
Ring-fenced is a term borrowed from farming or ranching and applied to a sum of money set aside for a purpose.
In the Bible there is much about money. Ecclesiastes 5:10 was written by a rich man, King Solomon and begins Whoever loves money never has money enough.
Footnote: Help is available for those with debt problems from various agencies including CAP.