Oxford commas (Please help)

[Fangfallen]

I try to use the "Oxford Comma" where applicable, but there are times when I forget to do so.
My English writing skills are probably poor, but I do try my best.

[Ratburntro44]

I, love, using, a, comma, after, every, word, just, in, case, one, is, supposed, to, be, there.

[royalblue]

I, love, using, a, comma, after, every, word, just, in, case, one, is, supposed, to, be, there.

I once knew this guy who always placed a comma right after the conjunction.