Good
Eyebrow shape and tint - changed my life 
0.5 lipfillers - very subtle but great
Botox - self explanatory
So-so
Teeth whitening - great but not worth the pain / sensitivity
LVL lashes - fine but not really noticeable. Still need mascara
Gel nails - great for an occasion but need the extra occasion to have the taken off when you realise how stupidly quickly nails grow.
Spray tan - I look better pale unless height of summer, then compared to everyone else I look like ghost.
BAD
Eyelash extensions. Faff, faff, faff. Look fake and you get a build up of gunk around the glue line.
Anyone else?