Slice of lemon
Caster sugar (plain sugar if you are not as posh)
Soda with a twist of lemon (or soda, and a squeeze of lemon juice)
More caster (or not, if not posh) sugar
Soak lemon slice in sugar. Put in glass.
Pour vodka in. Don't think "I'm too sober, I need a quadupal shot". Just give yourself two shots, max.
Top up with soda. I found "Soda with a twist of lemon" at the supermarket and I use that.
Add more sugar if you wish to disregard all dental/nutitionst advice. i did. you'd think I'm rolling in it
looks like lemonade with a slice of lemon. no need for a photo. oh, and the lemon slice WILL float. Don't let it freak you out (gee, I wish someone was around to tell ME that a few drinks ago)