Combining Test Cyp of Many 1ml Vials Into One Vial?

I get prescribed many 1ml vials for my TRT prescription. it is extremely annoying trying to extract the last little bit of it for my second dose and I always lose a bunch due to trying not to leave air bubbles in the syringe.

If I have say 10+ 1ml vials, is it a safe/good idea to combine them into one vial to make it easier to extract?

I am at .75 ml weekly my self never thought of that, i know take.25 out this vial then .5 out of this one. As long as you dont contaminate in process. Should be fine.