I am looking for a title of a book, The main character could send out a "strand, stream?" of magic to retrieve whatever he wished. If he wanted a beer he would get it and one would disappear elsewhere in the world. I know I read the book as a paperback, maybe in the mid to late 90's.
This sounds to me like Roger Zelazny's Trumps of Doom series. The principal character - Merlin of Chaos - accesses magic via the Logrus. When using this he visualises lines of magic extending from his hands, and on several occasions uses this abliity to draw beers to himself. There are 5 books in the series, Trumps of Doom, Blood of Amber, Sign of Chaos, Knight of Shadows and Prince of Chaos.
The Wheel of Time series, by Robert Jordan
(and later picked up by Brandon Sanderson after the original author's death in 2007)
The strands are weaved into different spells - one can infuse orange scent (hopefully), another would slice armor in half, etc. They come in five different flavours - the classical five elements of spirit, air, earth, fire and water. The source of these is known as the Power, which is divided into two halves - one called saidar, which is the female half, and saidin, which is the male half and tainted by the Dark Lord.
Until book 10.
It's a behemoth of a series, effectively quadruple the length of Lord of the Rings, and has much more diplomacy besides. I'd definitely recommend a few years to reading it.