Exchanges are the way to go since many altcoins live and die every day so developers/programmers won't put in the time and effort to create an all in 1 compatible wallet, also take note that every exchange "can" have a different price rate for coins at different periods of time, remember to Arb 
Thanks for the info!
Sorry, what do you mean to Arb?
https://en.wikipedia.org/wiki/Arbitrage
"Arbitrage is the simultaneous purchase and sale of an asset to profit from a difference in the price. It is a trade that profits by exploiting the price differences of identical or similar financial instruments on different markets or in different forms."
This pretty much sums it up
Gotcha - Thank you!