What are /r/PFTek's favorite Products & Services?

From 3.5 billion Reddit comments

Coarse is better than fine. This is the best I have used, but I'm looking for something less expensive.

https://www.amazon.com/dp/B07N7PSQM1/ref=cm_sw_r_cp_awdb_imm_MP3WPY9GE1E6ZEBFVNCR?_encoding=UTF8&psc=1#

The most recommend jar is an "8oz wide mouth mason jar" There hard to find and expensive but this is the perfect jar https://www.amazon.com/Kerr-Half-Pint-8-Ounces-12-Count-1-Case/dp/B00A0KUGYU/ref=mp_s_a_1_3?dchild=1&keywords=8+oz+wide+mouth+mason+jar&qid=1630587435&sr=8-3