The mixology sets are great Mazza. The samplers last ages when you put 3 in one of those. I sometimes put 3 the same and sometimes experiment a bit.
Off topic- I lit my True Rose large jar last night. It smelt nothing like the lid and nothing like I expected. I am in love with it! It may just shift Vanilla Lime off the top if my fave YC list. But I digress. Sorry....
Oh yes, I agree samplers can be good for trying out new fragrances and mixing up and they do last a surprising length of time. I usually combine a couple of the candles with tarts and tea lights as I use them in sitting room with open staircase so need quite a fragrance throw.
Am burning vanilla lime myself in the evenings now, gorgeous.