I'm always curious to know the trends because nobody ever follows them (ie. the normal people). Trends are idealistic and ironic. We hope people wear pastels and mix tweed with green cargo, but they're still wearing UGGs with skinny jeans. I don't blame them. In this economy, it's very difficult to keep up with the trends when you can't keep up with your rent. Granted, Neiman Marcus is the last place you should be if you can't keep up with your rent.
My advice is to keep your wardrobe simple. Then, feel free to have a hay day with your accessories. Buy the gladiator sandals, the chunky necklaces, and the motorcycle cut-off leather gloves. Updating your accessories is the cheapest way to keep up on the trends.
Feel free to comment if you have any additional tips on how to stay trendy on a budget.