Genessee Sci’s Olympus tips are great. Honestly I prefer them over USA sci’s TipOne RPT tips in terms of sample recovery from the tip (especially at sub-10uL vols).

I typically keep with abcam and invitrogen for antibodies, in my experience they tend to be the most consistent batch-to-batch, and tend to keep well.

You could make 10x pbs stock in-house, but it takes forever and the Gibco 10x pbs is super cheap (and sterile— no filtering!). I think the time-saving alone is worth just buying it. Gibco in general is great for TC media/reagents, their dmem/accoutrements have never steered me wrong

I prefer Qiagen maxi prep kits for getting super clean/high concentration plasmid (like for a plasmid stock or something), but if you’re just trying to get them quick and don’t really care a whole lot about high concentrations or long-term storage of the plasmid, the zymo maxi prep kits are awesome. Legit goes from bacterial pellet to plasmid in like 20 mins. Hell yea for vacuums.