Core Insights - A Canadian couple successfully built a $4 million investment portfolio using their TFSA, highlighting the potential of tax-advantaged accounts for long-term wealth accumulation [1][2] Company Analysis - The husband invested in Air Canada and Bombardier, both of which were near bankruptcy at the time of investment. Bombardier has shown significant recovery, increasing over 2,000% in the past five years, particularly after shifting focus to the luxury jet market [3] - Cava Group's stock has declined 67% over the past 52 weeks and is down 74% from its all-time high of $172.43, indicating severe challenges faced by the company [5] - Cava is experiencing a decline in customer spending due to inflation, economic uncertainty, and job-loss fears, which is affecting its sales performance [5][6] - The fast-casual dining sector, including Cava, is seeing weak same-store sales, particularly among younger consumers aged 25 to 34, who are more impacted by current economic conditions [6][7]