What Torque wrench and lube?

I mostly don't need a full adjustable torque wrench for bike stuff. The majority of things I need a torque wrench for are about the same tightness, and I make use of a CDI torque key that's preset to 5Nm. That covers the vast majority of clamping interfaces.

Crank fixing bolts are the one thing that require much higher torque values, and I use an inexpensive beam-style torque wrench for that. I think I got mine at Ace for $25. plus a set of hex socket bits from somewhere or another (maybe Northern Tool?).

I don't get too fancy with lubricants for most things.

I keep a tub of basic grease around. I buy whatever axle grease from the auto parts store usually. Currently have Lucas Oil Red & Tacky or somesuch. Same stuff I use for the hub bearings on my camper. It stays put well and gets "general purpose" use on the bike. I pack it around cartridge bearings in the headset and bb, and use a thin film on other things (like the crank spindle, bolts that don't specifically call for a thread locker, etc). Clamping interfaces get a fiber grip. I've got a tube of the Tacx stuff, but I'm not such a big fan of it. I find the grit in it to be too irregular and angular and that leads to it actually causing creaks. I like fiber grip with a more consistent particle size. Lots of parts I've bought have come with the FSA stuff, which I like better.

I do keep around a tube of slick honey grease. That's a much lighter grease that specifically called for by some dropper post manufacturers and suspension manufacturers for servicing those items. I use it for those specific things. It's too light (and expensive) for the things I use other grease for.

Chain lube is where things get a little more complicated because your climate and riding conditions will be a major determinant of what lube types do better. Wet lubes work better in cold and wet conditions. They "work" in dry conditions, too, but they usually have a tendency to allow dirt to adhere, so they get royally messy pretty quickly. Dry lubes do better in dry conditions, because they are less likely to allow dirt to gunk up your chain. They "work" in wet conditions, sortof, but they wash off fast. I usually use a more intermediate lube, because I encounter the full range. Everything from immersion in deep creek crossings and persistent dampness to full dry, dusty conditions. And those might all occur on the same ride.

I don't get fancy with cleaners, either. Most of my "cleaning" is just a dry rag knocking or wiping stuff off. When I do an actual cleaning, it's mostly just Dawn soap, water, and a sponge/brush. I usually keep around a can of Clean Streak for spot use, but I don't use a ton of it.

I also keep around a spray bottle full of isopropyl alcohol. This is often actually called for by brake manufacturers for cleanup when doing brake service. Also works well for installing grips (esp slip-on types).