Hood Canon Rebel

Hood Canon Rebel
What is the best upgrade of the camera under $ 100?

I have $ 100 I spend on my camera. I have a Canon Rebel XSi with a kit lens 55 mm-18, a 55-250mm F/4-5.6 IS IS, both canon brand. I have no umbrellas for either of them. I have a cheapy Gadget Bag that comes with the camera. I have memory cards and Memory Card Reader. I am open to all suggestions. Thanks in advance.

This bit of self-contained sun: http://www.bhphotovideo.com/c/product/61441-REG/Vivitar_233965_285HV_Auto_Flash.html It is a fantasy drive TTL, but if you take a little time to learn to use this thing, * not * need a TTL unit. You can get 2 of these and a set radio slave for the cost of a Canon 430EX!

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