I do not recommend driving around town without a left blinker light. You will get honked at a lot. A whole lot.
Which reminds me of a story about my youngest sister. She has a friend who is the sweetest girl, but is not mechanically inclined. Her blinker went out so my sister told her she needed to go get some blinker fluid. The poor girl went to the auto parts store and asked for blinker fluid. Personally, I do not know why she still speaks to my sister after that.