How do you avoid caching during development?

Is there a simple way to prevent all caching when testing the appearance of changes to the site? I use WP Super Cache. I can delete its cache using the option provided, delete the cache for my browser, and still some changes to CSS or widgets do not refresh. I try other work-arounds like switching browsers or computers, but there must be a more stream-lined workflow where I can ensure I’m viewing the changes I made and not some cached earlier format? What’s the best solution for this?