I spent $500 on a ticket to a concert, but I could have waited and bought one for $200 the day before."
'I wish I hadn't spent so much on that ticket?'" or "What is 'I should have waited to buy the ticket?'"
In 2012, I thought about buying $100 of Bitcoin when it was $5, but I decided it was a silly idea."
I wish I had bought that Bitcoin?'" or 'I should have invested in Bitcoin?'
I went out for lunch and realized I had no way to pay because I left my cards at home."
'I should have double-checked that I had my wallet
"Your friend bought a new video game console at the store for full price. You saw it online for 30% off."
You should have checked the price online first
"I signed a year-long contract for a gym I only went to twice."
'I wish I hadn't gotten that gym membership?'" or 'I shouldn't have signed a year-long contract?'"
: "I sold my shares in Apple in 2005 for a small profit."
'I wish I hadn't sold my Apple stock
"I took $100 out of the ATM and then dropped it on the street without realizing."
'I wish I had been more careful with my cash'" or 'I shouldn't have taken out so much money?'
Your friend lent $500 to a friend who has a bad habit of not paying people back."
You shouldn't have lent him that money?'" or You wish you hadn't lent him that money?'"