You need fiat or preferable BTC in reserve if you use the buy everything strategy.
I always have the problem that i see coin/project i like and the price is right, but don't have the resources to invest.

Nevertheless i only invest in coins/projects that i like personally, that i think have a future. that is my strategy.

My list:
Monacoin
Ans
Expanse
HMQ
XEM
Waves
Maid
Steem
Stratis
LBC
ICONOMI
Syscoin
Bela
Wings
Ark
UBIQ

All for long term! (probably missed a couple)