4-5 1/2" drop point sheath knives with ergonomic rubber handle
good stainless steel (440A or better), sheath, for under $20.
Ditto in carbon steel.
Note : Texas law limits us to 5 1/2"

for public carry.
Folding knife: lite weightlockbacks with drop-point
stainless steel blades 2 - 3 1/2" long. Priced under $15.
Ditto in Std. weight lockbacks w/heavier construction.
Also ditto for folding knives w/clip point blades.
Like drop-point that curves back for cutting yet maintains a strong almost straight point for stabbing.
Everything American made.
My favorite sheath knife is one I bought at Walmart for $15.xx, 440A stainless, 5" drop point blade, "Remington", US made. It's light weight, fair edge holding ability, ergonomic rubber handle, not real thick, probably 1/8" or less. Yet I can carry it everywhere, it's so liteweight I don't notice it. The 5" length has been ok. I prefer 6"
but its better than 4", and its legal to wear. And its cheap! If I lose it, I won't cry over it. Would buy 2-3 more if they still sold them.