I absolutely LOVE Aldi dupes. The things I bulk buy when I see them in store are...
Moisture boost moisturiser
Hot cloth cleanser (I prefer the marine algae one, but the rose and original ones are nice too - I sometimes buy the gift sets of smaller ones to work my way through)
Rose toner (AM)
Glycolic toner (PM)
H2O overnight mask
Ebony rose face mask (will look out for the face cream now I've seen it mentioned here)
Concealer (Nars and Tarte dupes are both good)
Kiehl's midnight recovery dupe (AMAZING)
Rose oil (costs less than a fiver and is exactly the same as an Elemis one I had RRP about £60 for 15ml)
Cleansing balm (everyone raved about the EH one on the M&S advent calendar thread - I couldn't wait to get back to my Aldi one - way better!)
I liked the watermelon gel moisturiser (Glow Recipe dupe) but found I didn't really use it as I preferred the moisture boost one and they serve the same purpose for me (lightweight summer moisturiser) so I won't repurchase that unless I run out of my moisture boost stash and I need something to fill the gap.
I also like their UD eyeshadow palette dupes (love the brush!) and I bought their Benefit bronzer dupe recently but haven't used it yet.
There are a few things I haven't got on with... Caviar cream wasn't for me.
I used the rejuvenate night cream for years until they either changed the formula or I got a dodgy jar, it just smelt so strange and I couldn't stand putting it on my face. Didn't think to use it on my legs! I use the Q10 night cream instead now but my quest for a HG night cream continues...
I wasn't a fan of the pineapple serum - found it too sticky - but now I'm thinking maybe I've been using too much. Might try again with a smaller amount.
I also tried their Drunk Elephant vitamin c serum dupe and it was a good dupe (smelt exactly the same, bit sticky on application but sinks in quickly so the stickiness doesn't last long)...but I have another vitamin c serum that I prefer and am happy to splash out on as lots of my skincare is now Lacura or Superdrug.
Just waiting for them to bring out a Clarins Double Serum dupe...sigh...