I'm not sure about solder - I'm still using the same roll I was given 25 years ago!
For wires, I have some rolls of un-cut multicore wire (I think you can buy kits with a few metres of each colour?). However if I know I'm connecting to something that's got pins/socket on it, I'll use those dupont jumper wires. For a few £ you can buy blocks of connector sleeves like this - then you just unclip the connectors that you soldered from their single blocks, and push them into the multiple ones in the right order. Makes everything nice and tidy :)
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
I'm not sure about solder - I'm still using the same roll I was given 25 years ago!
For wires, I have some rolls of un-cut multicore wire (I think you can buy kits with a few metres of each colour?). However if I know I'm connecting to something that's got pins/socket on it, I'll use those dupont jumper wires. For a few £ you can buy blocks of connector sleeves like this - then you just unclip the connectors that you soldered from their single blocks, and push them into the multiple ones in the right order. Makes everything nice and tidy :)