Many people ask "what can I do to be romantic?" or "Can you give me some ideas?". This is the misconception many of us have about romance. Romance is not about masterminding some scheme to lure someone like a tiger luring his prey until he pounces on it. True romance is some gesture which sincerely comes from the heart. You do not have to be rich, a genius or the most fantastic person in bed, to be a romantic person. All you need is a sincere heart and a limitless love for your partner, and then the ideas/gestures will come naturally.
Romantic gestures or ideas do not have to be lavish or big. But as I have experienced, it's the smallest things that we do that are truly romantic. Sometimes we may do something small that doesn't seem to be much to us and we hardly notice doing it, but to our partner it would be a amazing romantic gesture. For example, leaving a simple love note for your partner in the morning. This gesture is simple and doesn't involve money or mush time, but it will mean a lot to your partner and would make their day even better than it will be, just because they will be thinking about it all day long and smiling.
And if you're not really consistent at doing such things, don't worry. Just do it every once in awhile, especially on important occasions in your relationship (anniversary, birthday or some event which involves the both of you).
Also, these gestures do not have to involve much money. The best gifts are always the ones that are born from the heart and made by yourself. No matter how horrible it may look, the effort and love put into it would mean the world to your partner, more than any gift you can buy from the store. For example, poems, video dedications, photo albums (with pictures of you and your partner), cooking meals for your partner, watching a romantic movie at home, dancing to your partner's favorite songs, singing to your partner, and etc.
My advice? Keep it simple, keep it small, because it will mean big...