Soldering Techniques?

[RobertInOntario]

When soldering sections of HO track together, is it best to solder a few strands of wire (or one thick strand) along the edges of the track? Sorry if this is a dumb question but I really muddle through these things. Lately, I've simply been soldering blobs of solder along the sides of the track but I remember reading somewhere that it's better to solder strands of wire alongside the tracks.

If so, do you use some sort of clamp to hold the wire in place while you're doing the soldering? as it could be difficult holding 3 things in place -- the solder iron, the solder wire as well as the wire being soldered onto the track.

Also, my eyesight isn't as good as it used to be and I get frustrated that I have trouble seeing what I'm doing!

Thanks in advance,
Rob