one of my favorite drinks is a cobbled up concoction of a G&T, Tom Collins, and a Gin Rickey.
2.5-3 oz of gin (I like Plymouth)
3-4 oz of soda
1 oz tonic
.5 oz of Roses lime
healthy splash of fresh lime and lemon juice
a splash or so of simple sirup
I like to garnish with a Cherry or a lemon slice
Yes its a cluster but it tastes pretty good. Depending who I'm making it for I alter the amount of tonic, sirup, and juices.