Growing items

I got a lil cash and was wanting to know what item i should get for my grow. Im talking like $6 or 7 bucks. My plant is only like a week old prouble exactly a week.

All i got is:
1 plant
1 cfl with reflector (home made, but nice)
all the soil i got is in use
1 computer fan blowing on the stem


What i think i should get (1 of these items):
Ph tester
another cfl- but then have no cord n socket for it
temperature, and humidity checker


what do you guys think i should get?? It doesn't even have to b on the list.

thermometer from the dollar store.

Well i should i said this earlier my bad.. im bout to hit up wollyworld

Mayb even nutes? i donno that's y im askin

with 6 or 7 bucks, just get a thermometer, maybe a splitter for you socket so you can run two bulbs. Then, you can go get another bulb another day.

Yeah sounds good, I was more leaning on a ph tester, but im sure you have more experience then me i have a total of 6 leaves experience. LOL.. I'll go with the thermometer.. I'll still listen to other posts though. Thanks man.