I try not to. I'm significantly more efficient at developing. I try to outsource/delegate design as much as possible to exploit marginal utility.
However, there are instances where this isn't always possible - sometimes I have to do some basic design. I've assembled a small collection of graphic/web design books that I try to make use of when I can. I'd recommend "The Non-Designers Design Book" and "Universal Principles of Design" to help you get started. In addition, I take screen clippings of interface elements that stand out to me and try to draw inspiration from them whenever I need to implement something similar.
However, there are instances where this isn't always possible - sometimes I have to do some basic design. I've assembled a small collection of graphic/web design books that I try to make use of when I can. I'd recommend "The Non-Designers Design Book" and "Universal Principles of Design" to help you get started. In addition, I take screen clippings of interface elements that stand out to me and try to draw inspiration from them whenever I need to implement something similar.