darkSpyro

I have a lot of skylanders to buy all upgrades and make level 10. Any idea or advice?

What I do is just replay the final level multiple times, but only until a certain point. Play the level while collecting all of the money, and kill all the enemies and get the money they drop too. Once you get to the part with the spinning blade in front of a big staircase going down, go down the staircase, pick up the blue jewel, kill all of the little firey Pikmin type badguys, get the money they drop, and then go to the chapter select and restart the level. You'll get about 1500 each time you do this, and it takes about 30 minutes to grind enough money to buy everything. If you aren't already at level 10 by that point, just replay the level in its entirety until you reach level 10. I recommend you listen to a podcast or something while you do this as it's kind of boring.

Just do Lava Lakes, it adds up so quickly plus there are like no enemies. just collect the money

Lair of kaos is the best level for both money and level grinding.....

Lair of Kaos, no contest. Lava Lakes Railway and some others get close for cash but give less experience and you really need to reset them more.

i always do the quicksilver vault up till the part where you have to push blocks around
at least 1500 everytime

Money--> //forum.darkspyro.net/spyro/viewposts.php?topic=57904
Level--> Running through Kaos Lair and restarting before either the boss, or after the dark towers.

If you have the pirate seas adventure pack I would suggest that for money. If you're doing it on the Wii version, when you talk to certain people in the ruins, the treasure resets. For leveling up I would say Crystal Eye Castle, Cadaverous Crypt, or Lair of Kaos