Amazon is offering this Belkin 6-outlet surge protector for $ 6.51 [amazon.com].

It’s a straight plug (not angled – those are available but more expensive).

Amazon price tracker puts this at the bottom of the range [urlhasbeenblocked] (between $ 5.80 and $ 10 for the last few years).

Shipping is FREE with Amazon prime, of course, or free with a minimum purchase of $ 35.

(edit: not sure why Slickdeals blocks camelcamelcamel as a price tracker, but you can paste the Amazon link into their searcher)