On my big trees I use white lights, a big angel on top and a star on the other tree.
I do not do any tinsel garland but I do use beads as garland sometimes. I like my tree to sparkle so I use lots of clear ornaments and I postion them so the lights are behind them to make them sparkle. I use lots of different decorations, sometimes it's jewerlry, sometimes I use hair accessories. I like to use silk flowers that have glitter on them. I even use some perfume bottle caps for some are beautiful. I love to use ribbon, I cut it in small pieces and tuck them in between the branches or I make small bows for on the tree.
Last year I bought some really cute earrings that look like small ornaments and some with just a bell and bow, they are perfect for my small wall trees (they had the hook to go through the ear so this made it easy to hang) But I have used the post earrings, I just put them in some ribbon or a bow which holds the post and put them on the tree.
My tree skirt is gold with little flecks of red and green. If I don't have a skirt for my other tree, I just grab a lace tablecloth or a cloth tablecloth to match my color them.
I try to make a cascade coming down from the top of the tree with flowers, or decorative picks and that other sparkle stuff to stick in the trees. I love to try new things and just have fun decorating.