  We discuss $QCD$ in the Hamiltonian frame work. We treat finite density $QCD$
in the strong coupling regime. We present a parton-model inspired
regularisation scheme to treat the spectrum ($\theta$-angles) and distribution
functions in $QED_{1+1}$. We suggest a Monte Carlo method to construct
low-dimensionasl effective Hamiltonians. Finally, we discuss improvement in
Hamiltonian $QCD$.
