Evening out skin tone

One day last week I ended up going to work super early and taking a
shower there. Anyway, after getting dressed and ready, I couldn't
found my foundation! I thought I had to go home or to the nearest CVS
to find anything because my face looked so unsightly without makeup.
Luckily I found my MAC StudioFix on my desk and all was well. So I
came to the conclusion that I would LOVE to go without foundation one
day of my life without scaring anyone, but what are the best products,
procedures, whatever for evening out my skin tone? If anyone knows of
any natural remedies, or any products (whether high–end or drug store)
for my skin type, please let me know. I'm in my mid–twenties and have
combination skin and large pores in the T–zone area. I'm using Tazorac
to get rid of acne (still in the initial stages). I'm also trying to
drink a lot of water but it's not enough!
Ideas anyone?