Beauty Wednesdays Part 2: If You Could Only Have One....tag!

I was recently tagged by the very lovely Rachel over at www.beautyqueenuk.co.uk to do this fun Beauty related tag - I am notoriously bad at remembering to do these tag posts but here I am making the effort!! *pats self on the back*  The Question: If you could only have one ______ what would it be?  And, in a few words, why?
 Primer - Eeek bad start - I am rather useless when it comes to primer, I never use it :/ I did try a W7 one briefly but it didn't seem to be doing anything so I just stopped....can anybody recommend a good one?! Base Product - I am going to assume that this means foundation, in which case I will always be true to Mac's Studio Fix Fluid foundation - I cannot live without it, I have tried many others and nothing comes close to it.
Concealer -  MAC Studio Finish. Again I have tried many many others over the years and none of them work as well as this does for me.
Powder - I often just use a cheap powder such as Rimmel's Stay Matte as it does the job well enough and doesn't cost the earth, but lately I have been loving MAC Studio Fix Powder - yes its supposed to be a foundation on its own but I quite like it over my regular foundation for heavier coverage. Blush (cream or powder) - MAC (Are we noticing a theme yet?!) Powder Blush in Dame. I am not loyal to one specific shade (not since they stopped my ultimate favorite Sweet William), but I have never been as impressed with any other brand of Blusher so I do stick to this range.
Bronzer - I don't really like using Bronzers much as I'm extremely pale and they just make me look like I've been tangoed.
Highlighter - Again this is something I don't use. I do want to try it though and learn how to use it well.
Make-Up Brush (single) - Eeeek - I don't use them, I'm a fingers girl :/ I MUST try harder!!!!!
Eyebrow Product - I use my HD Brows palette, and I love it!
Eye shadow (single) - I use a Lipsy Daytime Doll palette and just stick to the neutral shades.
Eyeliner - I wear GOSH Cosmetics eyeliner on my lower lids every day, and if I want a more dramatic look I add Barry M Wink eyeliner on my upper lids.
Mascara - They're Real by Benefit is my all time favourite, but I also have a lot of love for Estee Lauder Magnascopic. Estee Lauder Magnascopic 
Lipstick, Lip Gloss or Lip Stain - I love MAC cremesheens but its too hard to choose a favorite color. I also love Dallas lipgloss by Benefit.
 Lip Liner - I do not like lip liners at all I'm afraid.
Lip Balm - Chapstick Shimmer Sticks - nice and simple!
Nail Polish - Very hard to narrow it down to just one! If I had to choose right now, I'd go with Nails Inc Breton Street or GOSH Tropicana 
I've tagged a few people to carry on the tag - I have stuck to people who I think would be interested in the tag/mostly blog about beauty, but if you do it too, please share your post with me, I'd love to read it!
I am Tagging: Louise @ Confessions Of A Secret ShopperEmma @ Beauty By EmmaSian @ Quite Frankly She SaidLauren @ Mrs Hippo & MeFiona @ Dolly Dowsie  Thank you for reading and If you enjoyed this post, please consider following me via Bloglovin