Whatever works for you Jason - theres been plenty of novel bean storing ideas broached on this forum.
Just dont confuse the samples next time you visit your urologist mate ... it could have some nasty unintended consequences for immediate treatment/surgery ordered once the results are known ;D
Theyre all screw-top, so although your [hopefully sanitised] :P jars hold a requisite grind amount for your needs, they still allow oxygen in, so over time will give you a stale result.
Just a day each time, & I reckon youre fine - prob no evident loss of freshness. Keep it in there any longer & penetrating air will just eat away gradually at the freshness.
Sorry for taking the piss with your storage method ;)