Seasonal work is perfect for individuals who want to increase their income regardless of their economic status. Many teenagers and college students across the USA and Canada work seasonally during the summer and school breaks. Adults with part-time jobs work seasonally to earn more and get additional experience. Any industry with a "busy" season will almost certainly hire seasonal workers to help with the added workload.
If you look in the right places, you can find various ways to augment your income. Learn more about seasonal job opportunities and how to apply for them.