Here is a list of Best Camera Accessories for you to buy to help your photography skills:
Best Tripods:
Best Tripods for Wildlife Photography
Best Tripods for Macro Photography
Best Tripods for Food Photography
Best Tripods for Landscape Photography
Best Tripods under $100, $200 and $300
Best Flash:
Best Budget Flash for Canon DSLRs
(Also, check Best Cameras and Best Camera Lenses)