The two have been together for 5 years. They may still love each other as before, but they need to spice up their lives occasionally. Giving gifts on birthdays is a good opportunity to show your love. You should give creative and personalized gifts. For example, personalized military cards, hand-painted night lights, character dolls, etc. are all good choices. A passionate tango, a fiery red skirt, a gilded rose in your mouth, slowly walk to him and present it to him. It must be a different experience.
Since you like traveling but don't have time to travel because of your busy work, you can make a hot air balloon doll that travels around the world. A condensed version of two people, traveling around the world together on a hot air balloon. Even if you can't go out for the time being, it will make him understand that you are thinking about what he thinks all the time, which is also very good.
People who are very busy at work generally don't have a good sleep quality. You can give him a hand-painted night light of his zodiac sign, choose a warmer color, put it at the head of the bed, and accompany him to sleep after turning off the lights every night. It can calm his mind and make him feel very warm. What’s even more special is that you painted it yourself, so the meaning is self-evident.