If it isn't in your budget to replace the windows, try adding shutters instead. It's much more affordable and helps to give the illusion of larger windows—and you can do it yourself! Salvage shops are a great place to look for gently used shutters that you can refinish with paint in your home's accent color.
Illuminating the pathways and entrances to your home promotes safety and security, and potential homebuyers appreciate that. It also looks amazing in the evening and early morning. Solar lights are a good option, as they are efficient and low maintenance. Another option is installing low-voltage lighting.