Skin/Pore shrinking lotions?

I have noticed that as I have gotten older my pores on my face have gotten larger, or I just have started to notice. I have always had oily skin, especially in the T zone, and when I get a sunburn my pores are larger of course...but at other times they are very noticeable. Are there any cheaper lotions, serums, or skin treatments that can used to shrink my pores on my face or to make them less noticeable?