I know nothing about wine but do occasionally like a glass of red. I like them if they are smooth and not too harsh or sharp. In a restaurant I'd usually order a merlot but have also had Shiraz and malbecs that I've enjoyed (is my wine ignorance showing yet?) 
Every time I buy a bottle of wine to try at home it is disappointing and too vinegary or not as smooth tasting as I'd like. I'd assume it's because I don't really want to pay more than £7 a bottle or so but there must be some really nice cheaper bottles out there!
I'd really appreciate recommendations as it's getting expensive just taking a punt on different bottles when I have no idea what I'm buying.